You gotta try Poladroid.
TUAW was reporting about this fun new FREE program –
“Poladroid creates Polaroid-style images from your photos. The UI is a lot of fun. Drop your photos onto the Poladroid ‘camera,’ and after a few seconds, it spits out your unprocessed print. Watch it slowly ‘develop,’ or speed up the process by — you guessed it — shaking vigorously.
You can create an image at any stage in your print’s development by double-clicking and selecting ‘Take a sample.’ When your print is fully ready, a red ‘x’ appears on the bottom.
This application, while in beta, is a whole lot of fun.”
I played with it and I have to say it is a lot of fun!!!