We rode segways. It's been on my list of things to do before I die for quite a while now and I heard that you can rent them at the Thanksgiving Point gardens. The gardens are pretty cool just by themselves, but add a segway and you're going to have a good time... and look like a nerd.
Also, in case you were wondering if Henry and Willis are still alive you can rest easy. We have now managed to keep two mammals alive for a full six months. Here's the proof: