Here's one for ya,
If your like me your Blackberry goes everywhere you go. Sometimes you don't always have a camera with you but that doesn't mean you have to go with out special look to your photos. Simply take some clear colored plastic, stockings or a thin magnifying glass to alter photos! Its very easy with the Blackberry because you can slide just about anything thin in between the battery cover and the camera lens!
So try it for your self it works great! Attached is a sample photo taken at ceder point from this weekend. I shot this in black n white through a polarized piece of sunglasses with my Blackberry curve!