A Scooter for the Seas Sort of like the character Q in James Bond films, Sir Clive Sinclair is an iconic Brit who has invented everything from the pocket calculator to electric bikes. One of his more recent creations is the Sea-Doo Seascooter, which putt-putts along at 2 mph and can operate at depths up to 65 feet, making it a great option for snorkeling or shallow dives. The 12V battery lasts an hour and the entire thing folds into a package the size of a gym bag. Price: $299.95. www.seascooter.net