Visualizing the size of the baby during pregnancy can be difficult when all you can see is a growing belly. "How big is the baby" is an SMS bot that helps expecting parents visualize the size of the baby with daily fun visual text messages.
The Rasterbator is a cool and quick way to print a single image onto multiple pieces of paper. I first learned about the site while in college and we used to put up all sorts of large images with our printer credits. I just ran across it again, and realized the world needs more rasterbation.