This works on anything within a locked display case in the game. Look directly at the item through the display case glass. Now hit X to activate the lockpick mingame, but rather than taking the time to actually pick the lock, you can hit CIRCLE to back out of the lockpicking screen and immediately hit the X button. If done correctly, you will take the item from within the case without having to unlock the display case. i.e. the Elven Sword in the display case in Jarl Balgruuf's bed chamber area in Dragonsreach. It has a Master level lock but using this method you can get it without wasting time or lockpicks. NOTE: This is in most cases stealing, so dont get caught !
