I found THIS site recently - not actually had time to price up costs, but they claim to be pretty cost effective and they have a good range of 'plastic' materials - including orange acrylic and delrin.
Looks like it'd be possible to design something in illustrator (for example), drop it onto one of their cutting templates, upload it, pay and wait for the postman.
• Materials listing
@Matt is this a cheaper way of prototyping the bug body for hitec servos than your current method?
Would it be a way to reduce kit costs - as you could sell direct from the ponoko site?
