my daughter is 14 and used to enjoy riding her bmx but grew out of it so the replacement mountain bike she wanted had to be single speed with black frame and blue wheels. she found a picture of a acid and thats the frame she chose to have and build up on though it wasnt intended to look jump bike,ish but the overall finish is and the envy of a few of the lads she knows. i can imagine your friends build isnt going to be simple with no black allowed, white,red,silver. would that include nuts bolts and tyres ? if so thats going to be a build and half but imagine a full bike build without a single bit of black on it. now thats a bike i would like to see.