This is one of those characters I thought was going to be easy to design but was not! We did sooo many versions of it!
Here are two of the first versions I did:
Cheap action Figure version:
Collector Toy version (okay, I went a bit too far there, but it would have been fun to see him interact with Woody, no?! :) )
And the "Sid" version that we ended up with - version #200 (you can feel the frustration here! :) )