You could quite possibly do a transforming humanoid car hybrid, almost like a transformer, but personalized
Other robots from Synthiam community

Henrik's Cardboard Wall-E!
So I thought Id share my Wall-E so far. Since I havent got my hands on a toy Wall-E I decided to build my own. The idea...

Cardboardhacker's Emotions V1
Hey there! Here is my latest project. This time its an emotion generating project. Through speech recognition...

J's My Hexapod Project
This is what Im now working on now I finally have all the parts for it now and all my aluminum cut thanks to a local...