Absolutely Annoying ($1.99): A collection of 12 terrible sounds.
Annoying (free): Sounds guaranteed to annoy those around you.
Annoying Sounds ($.99): A collection of 16 sounds that will put your teeth on edge.
i-Horn ($.99): Surprise people with your own air horn.
Pester ($.99): Play an assortment of shrill, high-frequency sounds.
Sound Grenade (free): You'll blow out some eardrums with this headache-inducing noise.
Big Mouth ($.99): Load friends' pictures and make them say what you want them to say.
Face Changer ($1.99): Morph your photos simply by dragging a finger.
Lightsaber Unleashed (free): Swing your iPhone like a lightsaber.
Moo (free): Remember those old toys that a made a mooing cow noise?
The Moron Test ($.99): Test yourself and your friends to see if you're complete idiots.
Pie in the Face ($.99): Throw a virtual pie at someone you have a photo of.
Portable Masks ($.99): Use your iPhone to make a pretend carnival mask.
Stereogram ($.99): Unfocus your eyes to see 3D pictures in these patterns.
Virtual Mouth Videos ($1.99): Place these on-screen mouths over your own to amuse your friends.