A bride has asked to add rice crispy squares on to her order to dip in a chocolate fountain. Any suggestions for how much to charge for these guys?

How about a hundred bucks?

Seriously, how many pieces does she want and what size are those pieces? For a chocolate fountain, I would suggest a 1" x 2" x 1" high piece. If you do a little math, you should be able to extrapolate how many pieces you can get out of a half-sheet pan...and then charge accordingly.

A cheapie bag of those Wal-Mart Rice Krispies (I don't remember the brand name, but they have a bunch of knock-off cereals in giant bags), a couple of bags of marshmallows, and some butter won't set you back much money, but they do take a little time to prepare, set up, and then cut. For a half-sheet sized pan, I'd probably charge 35 bucks.