Indoor carnival

from this post:
http://dontletsstart.blogspot.com/2006/05/no-we-didnt-have-baby-but-we-did-have.html

Ticket booth (Big roll of tickets, striped paper bags to carry prizes -- which meant I didn't have to prepare loot bags in advance -- and a CD playing circus calliope music Greg downloaded for free. Each attraction/activity was 1 ticket, but we gave them out liberally. Mostly it was just for effect.)Bounce house (minimal living room furniture, high ceilings and a small bounce house the kids got for Christmas a while back made this possible)

Face paintingClown photo board (the only real "project" involved, made from leftover gift wrap and balloons; the pictures of kids will be sent out with the thank-you cards)
http://static.flickr.com/55/142410203_330750f2d3.jpg?v=0

Balloon stand, hot dog/popcorn stand

Bean bag tossPrize walk (like a cake walk, only with bulk toy prizes, with music from Laurie Berkner, kids' music superstar)

Deep Sea Treasure Diving Adventure (last-minute brilliant idea using our pop-up playhut with a tunnel, some plastic balls and toy prizes, and snorkeling equipment)