Some more concept sketches. The first set of vehicles and characters are based on the silk and fabric materials.

I actually really like the characters I've done here. And I would like to drive the Dream Buggy anyday. XD

This next set of vehicles are based on the glass material. Personally, I like the idea of a see-through car, but a stained glass car has more of a theme and appeal.

I admittedly rushed these a little bit, so I'll draw the Stained Glass Blast car again because I like that one the most.