Funny you should mention that they rest in odd positions - we've only had Yzma for 2 months and this is her second shed. I peeked in to check on her and I freaked out thinking she was dead! Her head was completely sideways resting on her coils!! I reached in and gave her a tickle, and apparently she was just sleeping. It was like a person sleeping on their side on a pillow!!
She doesn't have enough much of a wobble, but I think it's adorable when she does it. I've never seen a corkscrew though....