Stephanie from The Crafty Kitty shares a tutorial over at Hideous! Dreadful! Stinky! showing how to make a pair of superhero underpants for a doll. This would be a great way to encourage potty training with a young child! The ones she made will fit 16″ Waldorf style dolls, but you can make them to fit any size doll. Go to Hideous! Dreadful! Stinky! to find her tutorial.
[photo from The Crafty Kitty on Hideous! Dreadful! Stinky!]