Make a veggie tray version of this!!
http://www.thisiswhyyourefat.com/?p=1189
Substitute hummus for cheese, carrots for Cheetos, cucumbers for the Rice Krispies railing... actually, keep the Rice Krispies, they're not too unhealthy for sweets
But I imagine even if you're a total dork and basically bring a dressingless salad, no one will complain if it's shaped in a Snackadium.