Make an LED Throwie for 6 (six) cents - it's the cheapest Throwie ever!

LED Throwies are popular contraptions made of a battery, an LED, and a magnet all taped together. This version does not include a magnet, although it could.

This project uses the same principle as Tool Using Animal's Penny Battery and Brenn 10's Penny and Nickel Battery. It uses pennies as electrodes and vinegar water as an acid you make a battery that will power the LED.

The video that this is based on can be found here.

If you like penny batteries, you're going to love the 500 lb. potato battery.

Step 1: Get your supplies!

For this you will need:

  • 6 pennies
  • Section of matte board or porous cloth
  • Vinegar
  • Salt
  • LED
  • Tape
  • Sand paper
i'm spanish and we do,'t have penies, u think that could work wiyh euro cents?
Euros won't work because you need both zinc and copper plates touching to work, such as inside a penny. Euros are made from copper and steel. Oh, if you dropped the e in penies it would... be rather amusing...
Also remembering that the plural of "penny" is PENNIES, with two N's.
Pnis?<br />
wow that backfired on him ;)
you know that is spanish<br> you have evidence
normal, i learned english with porn
What was the voltage? <br>
what if you just get a a lot of batterys and make a unicorn so you become a penquin bounty hunter of the coast of mc donalds. mmmm.. but if you do the math in youre head youll come up with 5 trolls and the divide that by burger king and youll get one half a wizard of oz and 1 fourth 4th of a dorathy, lion, tinman and a scarecrow.
I'm somewhat confused as to the meaning of this message, but I'm fairly certain there were some questionable substances used in its production.
so can i make bigger battery and not use coins??
AWESOME!!! i was going through some pennies and i found a 1943 steel penny.
Rule 1: Follow all rules.<br>Rule 2: Never have more than one rule.
I sanded myself....
Smooth. :)<br />
Get the pun?<br />
i cant see everything
it have battery
Cool Idea. I do recommend TESTING YOUR PENNY (especially in CANADA) to make sure it is COPPER. to lower the cost, our government (Canada) now makes the penny out of steel and plates it with a tiny layer of copper. that copper will sand off during the cleaning of the penny. Verify it is copper with a MAGNET as a real penny will not stick Mitch
i read once that if the penny was solid copper it would be worth approx. 5 cents...<br/><br/>hmmm that gives me an idea. Get a hundred dollars in pennies and sell them at 5 cents each 5x100= $500!<br/>then get the 500 in pennies, 5x500=$2,500<br/>5x2500=$12,500<br/>5x12500=$62,500<br/>5x62500=$312,500<br/>5x312500=1,562,500<br/>You could be a millionaire in no time!<br/>
That would never work, considering nobody has like 1.5 million in pre 1982 pennies.
True, but it would be nice if they still were solid copper.
And also no one would be stupid enough to pay you for your copper pennies in more copper pennies. "Hi, I've got $500 in copper, old pennies." "Okay, here's $500 in pennies that are worth 5 times more." "Thanks, now I want to melt these down for $2500." "Okay, here's $2500 in pennies that are worth 5 times more!" ................... :P
lol, yeah, I guess, but there are some stupid people out there...
If you had 100 dollars in pre 1986 pennies, and you melted them down, you could sell them for 500 dollars. But the higher you go it gets harder and harder to find more pre 1986 pennies.
Your math is off, .05 x 100 = 5.00.<br/>
He said $100 in pennies, not 100 pennies.
My mistake. Sorry.
Um, the idea is that the different metal inside the penny reacts with the copper to produce a charge. If it was all copper, it would not do anything. The sanding is to expose the inner zinc (in American pennies). I dunno if steel and copper react. Look up electrolytic cells for more info.
What if i <em>want</em> to sand myself?<br/>
1.grab sandpaper 2.rub all over face 3.??????? 4.PROFIT!
omg yes, you go on 4chan dont you?<br/><br/>lol, epic <br/>profit <sup>_</sup><br/>
Rule 1 and 2.
Doesn't stating &quot;Rule 1 and 2&quot; break those rules?
Not if you don't know what it means.
Well I don't know what it memes.
5.) Go to hospital.<br /> 6.) Get skin graph.<br /> 7.) Tell everyone you were in a fire and saved 100 starving orphans, though you had severe burns on your face. (Sounds better than, &quot;I was bored, so I&nbsp;grabbed the sander...&quot;)&nbsp;:)<br />
Step 7 is a face saving solution!&nbsp;
step 8 it doesn't work
Ha ha, punny!<br />
Is your name... <em>Sandy</em>?<br/>
Is it rechargeable?
Be sure that your pennies are dated after 1982, because they were almost pure copper before that date, if I recall correctly.
some pennies are compleatly steel because of WWII
The only year that steel pennies were minted was 1943, but you are correct. :)

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