Shapeways: Making Your 3-D Files...Into MAGIC SCULPTURES!

Some examples of what people have already done!:

Step 1: You make a 3-D file of whatever you want.
Step 2: Upload it to Shapeways.
Step 2: They will 3-D print it for you
Step 3: Enjoy your 3-D Sculptures!

Here's a list of their supported 3-D file types.