$74 – www.sharkbanz.com
Designed for beachgoers, swimmers and surfers, Sharkbanz use patented magnetic technology developed by marine biologists to deter predatory shark species. Watching it in action is, in a word, incredible. Capitalizing on sharks’ unique and powerful electroreception, Sharkbanz generates a sensation that’s undetectable to the wearer, but highly unpleasant to sharks, causing them to turn away. Sharkbanz has been meticulously researched and tested to ensure that they’re safe for both the wearer and marine life. Check it out!