The Dutch dairy company Campina (producer of the Yazoo milkshake
brand) is staging a kids' competition in the UK, in conjunction with
UP Aerospace. Winners get a family holiday to New Mexico to see a UP
launch, and place a picture and a letter in the rocket to be sent into
space. That's followed by a trip to Florida to visit KSC.

Competition link - WARNING: Annoying Flash and audio, you may want to
turn the sound off...

http://www.yazoom.co.uk/