Do you like being that extremely annoying person at parties, concerts or sporting events that everyone wishes security would quickly escort away? That's all but guaranteed if you show up with the Deaf Leopard: a CO2-powered handheld horn that is as loud as a passing train.
What could be a more memorable prank than sneaking up behind one of your friends and scaring them half to death while causing serious hearing damage? Nothing, and that's why the Deaf Leopard's $US550 price tag is totally worth the price of entry. You'll just have to provide proof you're a massive jerk before finalising your purchase. [TShirtGun.com via Notcot]