Aspyr Media has released VooDude for the iPhone and iPod touch. It
costs US$0.99 and is available at the Apple App Store

VooDude lets you create and manipulate your own personal, portable
Voodoo doll on the Apple devices. According to the folks at Aspyr,
Voodude acts as your “stress relief buddy.” You can use the
accelerometer and touch screen to shake, pin, burn and toss him.

Plus, you can personalize your Voodude by mapping any photo you want
on his head. You can use a picture from your photo library or snap a
photo with the iPhone camera.