Pay For This Bench Or Get Some Spikes Up Your Ass (video)
This might be the most painful concept we’ve seen in a while. This pay for use bench would let users enjoy a nice bench in the park, until they run out of quarters, after which retractable spikes come up and give you a nice pain in the bottom (as the British would put it). There would be a warning sound, though — probably for legal reasons. If you think this concept is ridiculous, I honestly think that it could come into production — anything to make a few bucks.