Model (in this case the GM helmet) > Covered in cilicone RTV > Covered in 3 part mother mold (I guess this is solid and helps the silicone hold its shape)
I understand now
What's the mother mold made from? Apologies if this has been covered elsewhere in the forum, I did a search but couldn't find anything relevant.
For the electronics have you looked into the
Rainbowduino? Its a custom arduino board made specifically for driving LEDs. Heres what ive got so far
(for the coloured side bars). I reckon a single rainbowduino board could power all the lights on the helmet if you make good use of multiplexing.