Handful of Concepts - Ping Pong Door.

"A door which folds out into a Ping-Pong table."

Taking the everyday designed door and giving it that more interactive twist.
 Making sure you and another person and enough room to play - the door can fold out from being vertical into a horizontal form almost like a 45º motion becoming a fully functioning ping pong table. The net, balls and bats will be stuck onto the back of the door ready to use in a quick and easy fashion - Then once your done playing - just strap the equipment back onto the table and flip it back to its original state.