Since the first CES 52 years ago, the world’s largest annual tech show has served as the debut platform for a host of buzzed-about gadgets. With the introduction of Royole’s foldable phone, LG’s rollable television and UBTECH Robotics’ in-home robot assistant, this year was no different. But there’s always a subplot of bizarre devices that seem unnecessary, ultra-niche or just plain out-there. Here’s a roundup of the most head-scratching gadgets we saw at CES 2019.