This jam is the classic Creamsicle combo of orange and vanilla. it's sweet and juicy and is great for people who don't like the bitterness of marmalade. Plus, don't throw those peels away. Dehydrate them instead!
If you have a persimmon tree (or at least a bunch of persimmons), how about drying them the traditional Japanese way, by skinning and hanging to air-dry? They turn into jam-like dates. It's called Hoshigaki, and it's fun AND delicious.