For the sake of nostalgia, here are a few of my early (& embarrassing) projects.
Make Your Own Pizza is a Flash application for choosing what toppings you’d like on your pizza. What’s neat about it is you can see an animation of the pizza being made in realtime.
Another school project for Flash, USA or Bust takes the viewer on a slideshow of a cross-country road trip, highlighting points along the map for each step of the way.
See early iterations of what is now PlaidMaker.com.
Even before making a tool to make plaid patterns, I made a few by hand with MS Paint.