Here are a couple of my CBG's. Just a simple 3 string fretless, with piezo bridge. Both are made from a Padron 4000 box. They are for sale if interested and can be seen at my etsy shop here: http://www.etsy.com/shop/Squier?section_id=7120477
I just finished this neat little amp, its lm386 based. Sounds nice. A guitar and an amp, what else do you need?