I have unearthed an old ice cream maker, which I asked for but never used.
It's quite small, battery powered which you pop into the freezer. I'm thinking it would be fun to do with the DC. (Why this has occurred to me now, and not summer is a very good question!).
No idea how to make ice cream, if anyone has any tried and tested recipes that would be great. Chocolate, strawberry, mint choc chip, rum and raisin would all go down very well here.