I was given a this skull by a family member. It is so cool and unique I just had to do something with it!
In short I placed 3 RGB sections around the skull, added a 555 timer to make the leds flash and filled it with water to create awesome patterns on the walls that surround it. I also placed a small fan over the mouth of the bottle to make the water ripple.
please watch the video
Step 1: Things needed
If you have seen my instructable on how to make a dog safety collar http://www.instructables.com/id/Flashing-LED-dog-saftey-collar/ you will notice that the 555 timer schematic is almost the same. now it can be the same but I chose to swap out one resistor for a potentiometer, you dont have to do this but it allows me to controll the flash rate.
47k resistor (two if not using the pot)
2.2 uf cap
crystal head vodka bottle
3 sections of a rgb led strip
small 12vdc fan (optional)
9volt power supply
Step 2: Schematic
this is a very simple 555 timer circuit, so I wont walk you through making it ( i do a step by step in my dog collar instructable)
resistor 2-7 can be swapped with an equal value pot for controlled flash rate.
Step 3: Preparing the leds
In order to select colors using rgb strips you need to ground them correctly. I decided to use red, green and blue. I took this picture from my other instructable. Its the same concept.
Step 4: Moving it to the skull.
I placed one rgb section on the bottom of the glass and one on each side. I mounted the fan at the mouth of the bottle, the timer circuit at the back of the skull, the pot at the top back of the skull and I tucked in the wires and hot glued them into place to secure them. its pretty simple. see the pictures for how I placed everything.
Step 5: DONE
fill it up with water, add your power supply and let it rip! your friends will be amazed when they see this piece.
watch the video :)