R.E.
I've always done them, but I don't like the ones filled with a bunch of junk. Maybe you could get a collection of full sized candy bars (Kroger has a bunch right now 2 for $1) and place them in a basket and let them each pick one as they leave. My sister is doing this at my niece's 12th birthday party, except she's tying a candy bar with a bag of microwave popcorn and a little note thanking them for coming. It'd be a favor they'd love, and it wouldn't be a bunch of junk laying around when they get home. Or squirt guns would be fun for kids that age. You can buy a package of about 10 for $5 or so at Walmart. Maybe a squirt gun with a candy bar? My boy is 7 and he'd love that!