I always wondered if others thought of doing something like this. I have a list of things I'd like to try and I added some from the comments here. A lot of the items of the list are more for fun then practical use since I doubt I could or would do it. It's more something fun to pass the time with. I have done bananas but I hate the super sticky clean up. I love oatmeal the most though even if it's sticky it's still a bit easier to clean up and I don't have to worry about chunks possibly clogging the drain when I shower.