Thermo, the most expensive robot I've ever made.
He is the product of a $1,500 car repair bill I acquired
the summer of 2005. Highlights include a "thermostat"
head and a "fuel injector" weapon that both came from 
that stunning (and expensive) bit of car surgery.
(I couldn't work the head gasket in.)
 
6" X 4", no active electronics, includes custom box,
 SOLD.