Earlier this year, I made an all wooden mousetrap car with the edges sanded down for the minimum amount of weight. Ball bearings throughout and just a 1spd pulley. Lathing down the wood I used for the pulley was a pain because it kept splintering. Carbon fiber shafts were pretty cheap and easy to get from my local hobby shop.
Got 1st for distance, since we didn't go for time, and went diagonally across the student center.
Here's the chassis, before final touches to get rid of the glue stains.
