As a warm up for our annual robot gift story, here's a list of 16 tempting robot gift ideas that come in under $20. Perfect for the irritating coworker in cubical 13, or the little nephew who won't be ready for the expensive stuff until next year. Let's start with a T-Shirt sporting a glowing Decepticon logo since Transformers was such a hit this year. Continuing with the this theme - duke it out with these Autobot and Decepticon fighters, and watch this Megatron action figure wield his arm-mounted fusion cannon! If you're looking for a desktop gadget with a robotic twist, check out this plush robot tissue box, sum the universe with this 6-jointed robot calculator, and trim your fingernails with this retro-robot pencil sharpener. Construction-oriented gifts include Discovery's motorized robot kit with light and sound, Kool Toyz Build-Your-Own Robot Kit with 47 pieces and a remote control, this refreshingly low-tech 6-piece set of wooden stacking robots, and this semi-bizarre Cranium Robot/Bug/Alien Mega Mask creation kit. One of the more sophisticated robots in this price range is Wow Wee's Mini Roboquad, but other gadgets could also lead to some interesting brain fun including this radio controlled tarantula, and this sound-activated jungle robot that can walk along a cord. Finishing up the list is media including Bionicle Heroes for the XBox 360, a widescreen edition of the great Robots movie, and How to Survive a Robot Uprising by Daniel H. Wilson. Whoops, I almost left out everyone's favorite, the 1966 classic Rock ‘em Sock ‘em Robots by Mattel - make it 17.