Wired.com is running a great contest in association with LEGO:
Simply take a picture of your family assembling a LEGO model and upload it to the GeekDad Flickr pool. Add a 50-100 word description of why your family enjoys building with LEGO together and use the tag buildersoftomorrow.
There will be five finalists chosen by LEGO staff. The four runners-up get a fabulous LEGO prize package to be announced later. The winning family also receives the prize package but also gets their picture on the box of the 2010 version of the LEGO Builders of Tomorrow set. All winning families will be featured on LEGOFamilyTime.com. The deadline is April 30th.