On Thu, 19 Apr 2012 09:05:37 -0700, Steve B wrote:

I need to make a model of a device I am inventing. I want a
nonfunctioning model, but something that has everything the real one
has, just not working, and not down to the tiniest detail. Are there
stores or sites that sell model builders supplies?

Try a model RR store.

--
Intelligence is an experiment that failed - G. B. Shaw