Still trying to find that product to compliment the Liquid Image Scuba diving mask? Look no further. The BladeFish Seajet is a personal lightweight rechargeable sea scooter that can propel you up to 4.2kmh, or about 2.2mph. Yeah, the speed is a bit slow, but instead of kicking and flailing your way to the bottom of the ocean you can calmly cruise to new depths (up to 30m) without running out of oxygen as fast. It weighs about 10lbs, so it’s light enough to carry in a bag to the beach and one charge will provide up to 40 minutes of underwater fun. Oddly enough, the orange version is about $150 more expensive than the yellow one, unless of course I’m missing something.