Picture of Glowing Alien in a Jar
I made a couple of these for a Yuri's Night ( party. The alien sits in a glowing liquid and the effect looks pretty cool in a dark room.

The materials required are
1) A jar with a lid that is thick enough to conceal a battery pack and some LEDs
2) Glow water made from florescent dye extracted from a highlighter pen (
3) Alien Embryo Growing Pet (
4) 4.5V Battery pack (
5) Protostack half size prototyping board (
6) 2.7 ohm resistor (1W)
7) 6 x High Power Ultra Violet LEDs (
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Step 1: Grow the alien embryo and immerse it in glow water

Picture of Grow the alien embryo and immerse it in glow water
Put the alien egg in water for about 3 days. During this time it will break out of its egg to about 3 times its original size.

Fill the jar with the glow water and place the alien embryo inside.

Step 2: Cut the prototyping board to size

Picture of Cut the prototyping board to size
The prototyping board was slightly too big for the jar I selected, so I cut off about 1 cm from each end. This was a simple case of scoring and snapping the board.

Step 3: Add the resistors and LEDs

Picture of Add the resistors and LEDs
Add the LEDs and resistors. You will note 2 pen marks on the board. This is where the 4.5 battery pack will be connected to.

Each LED has 2 leads, with one lead shorter than the other. The LEDs are connected directly to the positive and ground power rails with the short lead going into the ground rail.

On this particular board the positive rail has a solid white shading, whilst the ground rail has just the outline.

Step 4: Spray the board with a PCB varnish

Picture of Spray the board with a PCB varnish
We want some degree of water resistance as the glow water may splash onto the board. A PCB varnish will help here.

Step 5: Add the battery pack

Picture of Add the battery pack
Solder the 4.5V battery pack onto the board

Step 6: Tape up the board and add double sided tape

Picture of Tape up the board and add double sided tape
Tape up the board with electrical tape to give it another level of water resistance then add double sided tape to the bottom.

Step 7: Stick the board to the inside of the lid

Picture of Stick the board to the inside of the lid

Step 8: Sit back and admire your handywork

Picture of Sit back and admire your handywork
Pop the lid onto the jar, turn the light off and enjoy.
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khilesh made it!1 month ago
Hi guys,i tried to make this up nd in the midway i came up wid some modifications.. i made it rechargeable by using a small 4V lead acetate battery dat could be charged from outside using a normal nokia charger..and a switch in this was the only drawback i got in this project..without rechargable battery it only works for 2-3 hours nd then do all that stuff of changing the battery again and are some pics..
aazzaki9 months ago
its cool but i use the other materials
You could use a black light LEDs
combined with black light dye ($8.)

Or go with color changing LEDs:

Or multi-LEDs (red) that can be spaced 9" apart (for several jars):

Cool idea - when I get my man cave I'd like to have some glowing stuff :)
or black light leds +highlighter fluid
Wally_Z4 years ago
You could add a switch on the side of the jar so you don't have to open up the jar to turn it off. Plus, it will save on battery life. Make sure you waterproof the wiring on the switch, or it will compromise all your hard work.
you know, a better idea may be to make it solar powered, that way the battery wont run out
YOUgNeek3 years ago
Wow, I gotta make one of these!
LucDaRocka14 years ago
you could also do this for a ufo obducting a person..... use a cheap action figure or a lego figure inside and decorate the jar lid to look like an ufo.
Great my students will be freaked out
how about a reed switch so when you wave your hand above it it lights up. You could just stick a magnet to the lid when you wanted to turn it on and off.
DragonX7775 years ago
I think those jar are for holding cottonballs that doctors uses, or one of the lab jars they use for studying. take my guess
Studying what? ALIEN EMBRYOS?
awwwww thats so cute!
luvit5 years ago
these pesky aliens taunt me when i try to sleep. i will make this to scare them off.
That is an awesome idea. Scare off aliens with baby aliens. 0.o
Why not funk it up with EL wires going to the brain or heart keeping it alive with special fluid. Creepy. Another awesome project from another very talented instructable. I wish I had months of spare time to make every project on Instructables.
Yeah, the EL would be meanest... great job man.
nubabuba4 years ago
im just gonna put a fake eye or somethin in it. heheehe
So are there any alternatives to the highlighter dye? It looks great, but I want to do several and that would take a lot of pens. Thanks
Scionni5 years ago
Awesome instructable! I've lamps like this before in Spencer's, but there's just so much more satisfaction in making your own, you know? Besides. The green glow in your version is consistent, while the Spencer's version had its illumination strictly from the lightsource and not the liquid as well.

Anyways, I've an idea with keeping the alien fetus suspended in a more aesthetic manner. Maybe, while implanting a fishing weight into the bottom, you implant a pocket of air into the top of its head? The fetus will stand upright without having to be attached to any part of the jar, so it could drift and float too.
I wonder if simply using several small "glow sticks" glued to the underside of the cap would also work. Could be a lot less work and completely waterproof.
Glow sticks won't give the same effect (plus the aforementioned short life) as shining UV light into fluorescent liquid. It may not show well in his photos, but the liquid itself is glowing. The only way to get the same effect with glow sticks would be to cut them open and mix their contents with the water.
koal1 skrubol5 years ago
glow sticks would give the same effect u just couldnt use a UV light u would need a normal LED that is white and it would still bring out the flourescent glow stick juice thats mixed in with the water
It may work, although Glowsticks only have a Life of about 8 hours Tops, so then after that, you're without the glowsticks, unless you change them every day. This would be rather time consuming, and expensive. LEDs can burn for 100,000 hours before dying, and would run farrr longer than 8 hours on 4.5v.
How come the lights aren't blue?
It's the DYE that converts ULTRA VOILET light into GREEN. I bet you can't see ULTRA VOILET. :)
The alien can...
protostack (author)  0_Nvd_05 years ago
These LEDs have peak output at 390-395 nm which is pretty close to the visible part of the spectrum, so do do get a bit of visible light. Just as well because they are very bright, so if you accidently look at them, at least you get some sort of warning.
THEN IT WOULDNT BE AN ALIEN!?! aliens are always green, cmon, watch some sci-fi
zkemppel5 years ago
I'm gonna make one of these, but with a fake baby fetus instead of an alien.
robotjam5 years ago
I made this yesterday and it looks even cooler in person than in the pics, I did however tape a slide switch to the lid. I also made one of these with a skeleton i got from the dollar store, very cool.
lil jon1685 years ago
loli noticed on the box " ages 3 and up"
MY5 years ago
I submitted a product review of the alien baby and included your photo and link. Nice work!
rickyd!5 years ago
add a solar panel, some rechargeable batteries and put it outside on the deck
Haha, freak out the neighbors.
ATG Stephen3045 years ago
yea....m thnkin of putting in a fake hand nd usin red dye lol
make it your porch light or something. haha. that'd be awesome. dim...but awesome.
I'm with you, dude!
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