If only we'd had this in middle school. The Electric Paper Airplane Conversion Kit ($20) is exactly what it sounds like — a motor-driven propeller for your dead tree creation that can extend flight time up to 90 seconds, clips easily onto the nose of your plane, is made from carbon fiber so as to not weigh things down, and recharges in 20 seconds off the included, three AAA-powered charging box, getting you back up and flying in as little time as possible.
Have a lot of time on your hands and over four feet of office space to devote to your Star Wars/Lego obsession? Then start saving your pennies for the Lego Star Wars Super Star Destroyer ($400). Weighing in at nearly eight pounds, measuring 50 inches long, and consisting of over 3,000 pieces, the latest Ultimate Collector's Series model features incredible detail worthy of Vader's personal flagship, and comes with a display stand, data sheet label, and five minifigs, including IG-88, Admiral Piett, Dengar, Bossk, and Darth Vader himself.
It's about time someone offered all the advantages of paintball without the paint. Xploderz Water Pellet Guns ($15-$40) shoot pellets made of a super-absorbent polymer that you "grow" in water before loading into a cartridge and slapping on your weapon of choice: either the pistol-like XBlaster 200, the mid-sized, Uzi-like XStormer 1000, or the sniper-style XRanger 2000. As an added bonus, you can crush the spent ammo into your yard to help it stay healthy in the dry heat — the polymer was designed by the Department of Agriculture, after all. [via]