[Lucid:]

I like the idea of color packs a lot. I think even if a single color per pack doesn't work out, there could be like a "Pastel Pack," a "Earth Tones Pack," a "Black & White Pack," a "Neon Pack," et cetera. That might help increase the variety of items you can use, while still letting people buy the specific "look" of colors that they want. Extra bonus of being able to use more colors in general.