We have all had trouble with build platforms before I'm sure. Whether it is the sticking, the scratching of the platform while trying to remove an object, or other issues, there is always room for improvement. One Instructables man however, has found the ultimate solution, a solution you likely would never have thought of. The glass from an Apple iPad makes the perfect platform for whatever you are 3D printing. In fact he uses it without and sprays or tape, and it works quite well still. The following article goes over what he did, and how you too can install the perfect 3D printer build platform for under $20. http://3dprint.com/4969/ipad-3d-printing-build-platform

Check out the installed iPad screen below on a Makerbot Replicator 3D Printer: