three cool gagets available on anazon

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MALEDEN Invisible Ink Pen, 2018 Upgraded Spy Pen Invisible Ink Pen with UV Light Magic Marker for Secret Message and Kids Halloween Goodies Bags Toy (6pcs)
Potensic A30, Mini Drone for Kids, RC Quadcopter for Beginners, Headless Mode, Altitude Hold,Nano Helicopter, Portable Pocket, 3 Speed Adjustment, Easy Remote Return, Extra Blade, Auto Hovering, Blue