Soda Can With Resealable Advertisement

In the preceding video, a Ukranian inventor by the name of Johan De Broyer has come up with rendering of a water ad gas-tight re-sealable soda can which contains a hidden layer underneath the outr shell. This hidden layer becomes exposed when the tab is popped and twisted forth, useful for advertisements or other hidden messages (think those neat messages that were once only possible on the bottom of twist off bottles!). (Thx ItsTheTasteBuds)