GBA SP inside of an original Xbox controller?

[Epic Lavalamp]

I was toiling over some stuff in the handheld hacking posts on the benheck forums, and someone was proposing an idea of controlling an SP with an xbox controller. Well I thought, instead of just controlling it with the controller, why not put it inside of the controller? The things are big enough arn't they?? If you've seen this done, want to see this done, or have a comment of some sort, please post. I really want to know if it's possible so I can do it.

Just look at the size of this monster...