Toadstool cupcakes and stand for for a forest school party
social studies/art assignment: totem pole using recycled objects
Greatfun4kids: Wild West Party How To's (with Free Printables)
indian-tee-pee-ice-cream-cones for a cowboy party
Photo 14 of 26: Cowboys and Indians / Birthday "Little Big Man is One" | Catch My Party
Pirate B-day Party!
Cardboard saloon doors. When you feel like being a cowboy for the day but don't want to commit full time.
Starwnerry Mallow Toadstools (A Room On The Broom Birthday Party Food) Mummy Mishaps
Wild West Saloon Bar - don't know about the bar, but the potato sack race looks fun. Since the boys are 10-12, they could do a relay or obstacle course.