Kids can add safety and style to their bike while riding. The Blue or Rainbow LED Skull Sparx screw onto a bicycle tire’s valve stem. When riding, the LEDs create a rainbow lighting effect around the bike’s wheels. Each sustainable package has “try me” so customers can see the LED function, brightness and color before they buy. The package comes complete with batteries and an extra set of replaceable batteries. "[The] patented rainbow LED also offers safety and fun to riders at a low price point," Karlie, in marketing at Buztronics, told TDmonthly. Launch date: July 2009.