Sharks are the coolest. And sharks that shoot water? Discovery Kids’ Battle Blaster Hammerhead is an inflatable pool shark complete with a 180-degree rotating water cannon (taking “ammo” right from the pool, so no need for refueling) and puts other water toys to shame. Discovery Kids reports good pre-orders for the summer season. This thing will turn any sunny day into Jaws: dum-dum ... dum-dum-dum-dum!

This kidult gadget allows future spies to practice their skills by secretly taking photos and uploading them to the computer. The miniature camera watch takes up to 152 pictures and comes with spy cam CD-ROM software. It weighs only 1 pound and measures 2.5" L x 2" W x 4" H. The watch requires two AAA batteries (not included). According to Pamela Rucker, vice president of communications at Discovery Communications, the digital camera watch is unique because of its double function as a Web cam and its inclusion of software that allows the user to add messages and captions. Launch date: September 2006.

This high-tech tumbler transforms rough rocks and minerals into smooth, shiny gemstones. It is great for making decorative accessories or gifts. Tumbling machine comes with 1/2 lb. of rough rocks. The grinding powder duplicates nature´s erosion process, delivering a smooth finish. Includes two key chains, two necklaces, rings, earrings and glue. Instructions on how to find polishable rocks outdoors are included. It is approved by Underwriters Laboratories — the worldwide trusted source for product compliance. It includes a two-month manufacturer´s warranty.

This remote control car goes deep undercover. Kids can steer their car into another room, more than 30 feet away, and listen for remote sounds with special headphones.
— This item was a top seller for girls age 8 to 12 at the Discovery Channel Store online in June of 2005.
— The Spy Mobile was the winner of the 2004 Parents’ Choice Fun Stuff Award.
— The motor is quiet enough to avoid detection by most spy-ees, claims Discovery.

This Discovery Channel exclusive can glide over land or water. The tiny hovercraft is powered with dual-drive fans.
— This item was a top seller for girls age 8 to 12 at the Discovery Channel Store online in June 2005.
— Its tiny size gives it more agility.
— High-performance steering lets it take corners like the real thing.

Kids can learn how to use forensic science to fight crime just as they do on the popular TV show CSI. This complete, hands-on forensic lab allows kids to solve six tough cases — each harder than the last. State-of-the-art lab instruments are used to analyze handwriting, decipher blood type and examine mysterious fibers in the search for answers. It was a winner of the 2003 Parents’ Choice Silver Honor Award. Ages 8 and up.