"3M™ Scotchshield™ Ultra Safety and Security Window creates an impenetrable window. This tough, new dimension in window film technology provides property and personal protection against crime, violent weather and accidents." - from www.3m.com

3M the company that makes post-it notes also make a whole load of other products. In a recent marketing campaign in Vancouver they sought a strong image for their security glass. They modified a bus shelter and fitted their security glass and filled it with real bills! Many have tried to gain access with golf clubs and baseball bats but obviously the glass remains intact! (although other sources say that there was only $500 of real currency, the rest is fake, which i think is more believable. A security guard was present for the duration of the promotion. People were told they could only use their feet and would not get to keep the money if they were successful.)

Hmm.. if only my money album was made of that material.. i wouldn't care if it was laying around for people to see