The art club can probably provide decorations and any backdrops or stage props the other clubs might need.
Baking club will provide assorted refreshments for the concert!
The orchestra will perform some of the pieces they've been working on throughout the year. Would it also be possible for individuals to perform, if they want to?
We'll do some kind of sporty thing. Probably exhibition-ish like the Dueling Club is doing, but where they're doing a couple mock-duels, we're going to showcase all the different sports we play, so...
more The choir will be singing, of course.
Dueling club will do a dueling exhibition.