a rectangular resin mold
This used a 3 by 6 inch mold (manufactured by Castin' Craft) but it's definitely not a requirement. If you choose to use a different mold you'll need to adjust the project accordingly.
6 to 8 ounces of resin (and appropriate catalyst, if necessary)
I used a polyester resin but a 2 part epoxy resin would probably be safer. Any clear resin should work.
black resin dye; blue, yellow and pearl optional
Manufactured by Castin' Craft, available all over the internet.
To get the blue and yellow colors to 'pop' in front of the back you'll need to add some pearl (or a tiny bit of white instead of pearl.) If you don't add the pearl/white the color will be most obvious when it's lit but not so obvious when it's turned off.
If you're a fan of cosmic debris like I am. I used some silver 'holographic' glitter and some silver star shaped glitter.
2 part clear quick-setting epoxy
You'll only need a little, and you may not need any at all.
LED lights (5mm white superflux are used here, but almost any should do the job)
This pattern requires 10, you can use as many as you want.
A good photo/diagram of what I used is available here:http://www.besthongkong.com/product_info.php?cPath=18&products_id=156&osCsid=796b2f3a70556c63d0d21b3f53a97e38
This is wired up with 24 gauge silver plated beading wire. The fixture is low-voltage and the wires are all encased in the resin so insulation isn't necessary. Light weight wire is definitely the way to go for this project.
batteries and an appropriate holder
2 CR2032 batteries and 534-1026 holderhttp://www.mouser.com/search/ProductDetail.aspx?R=1026virtualkey53400000virtualkey534-1026
56 ohm 1/4 W based on this calculator http://led.linear1.org/1led.wiz
If you use a different number of LEDs or different batteries you'll probably want to double check what resistor to use.
1 on/off switch
purchased at a home improvement store, just a basic on/off.
a set of electrical 'alligator clips' for testing your leds/connections/etc.
5 small, strong clips
pliers (2 pairs is nice, but not necessary)
a screwdriver (probably Phillips, but check your switch to be sure)
assorted standard household items