Buddi

Buddi is a miniature GPS (global positioning system) tracking device that you attach to your child's clothing.  If the child were to become lost they could be found via GPS within a few meters of accuracy.  The device also has a panic button.  So if the child is lost and needs help they can press the button and the customer response service will be able to locate the child and send help.  Buddi is very small, very expensive, and right now only available for use within the UK GPS system.  (Naturally, the American answer to this device will soon pop up.)

www.buddi.co.uk

Brickhouse Locator

You attach a little tramsmitter somewhere on your child's person.  You can attach it to their beltloop, backpack, shoe, whatever.  Then if you lose track of them in a crowded place or at a big park you can quickly locate them by following the signals on your receiving device.  The receiver is about the size of a cable company remote control and it beeps slowly if you are going in the wrong direction and quickly as you get closer to your target.  Brickhouse and Duracell are marketing this device as something that you can use to keep track of anything from your purse to pets and kids. 

You simply must watch the promo video .  It is hilarious.  You can just envision yourself beeping around public places with this homing device maniacally trying to win an electronic game of "you're getting warmer...your're getting colder.

http://www.brickhousesecurity.com/locator.html

My 411 Wristbands

Mabel's Labels makes customized, waterproof, disposable, wristbands for kids.  You can choose a kid friendly graphic and then write any text to be printed on the bands, up to 50 characters. 

For example:
Jimmy Choo
Mom cell: (123) 456-7890
Peanut Allergy

Its $21 for a pack of 30 wristbands and they are fun for kids to wear. 

www.mabel.ca