From the PixelSquid site:

Browse thousands of objects in our library, spin for the right angle, and then download a PNG or layered PSD with perfect transparency. With PixelSquid objects, you’ll never need to spend your time masking.

This seems a pretty useful idea. Take a moment to click through and give it a try. Click on an image, then drag to rotate. Super fast, and fun.

[H/T The pugnaciously pragmatic Not Jony Ive]