Put a text book on the iPad or put the iPad upside down a lot. For best results put the iPad upside down and then put a text book on the iPad but you may not want to have textbooks on top of your iPad.
I tied a couple of covers from the Apple store and ONE from STAPLES. ALL blue with the exeption of a RED one! THE RED ONE actually FIT ALMOST PERFECT out of the box! TRY a RED one! What color did you have ?