What better way is there to advertise the effectiveness of your insecticide spray than with a billboard that also happens to double as a gigantic bug trap?

Created by Italian ad agency Publicis for a bug spray brand called Orphea, the billboard is partially covered in an invisible non-drying glue so that over time thousands of insects get stuck creating the illusion that they're falling prey to the can's blast. It's a brilliant way to promote the product, we just feel bad for the unfortunate soul who has to take the ad down at the end of the month when it's encrusted with millions of dead bugs. [Adverblog via Taxi]