Jen from Cake Wrecks made this amazing AT-AT rocking-horse, documenting the build online (she's promised plans to follow). It will be auctioned for charity at Megacon by the Florida chapter of the 501st Legion.
As I said, little Isaiah (son of my Wrecky minion Julianne - and resident of the Ninja Nursery, if you remember that!) was afraid of rocking on the AT-AT, even though he loved it and kept standing next to it and patting it. So to help him feel brave, I got him a Vader mask and cape. And, hey, never underestimate the power... of a Vader mask and cape:
Isaiah is rocked all the way forward here, so as you can see the bumpers really prevent it from going very far. (He didn't want to rock backward at all. Heheh.)
If you missed it, you can see some construction shots of the AT-AT here. Oh, and I still don't have a pattern for you guys, but I promise it's on the to-do list!