I returned from flying to find a stack of key cards in my mailbox A big THANK YOU to everyone that contributed! I mailed decals today, so if you sent keys, look for your decals soon.
For those wondering if you should send a key card - the answer is yes! It's an ongoing project that will take a while to fully develop, so if you have key cards with the city printed on it please send 'em!
I'll keep this posted until I run out of decals!
Sincere thanks for the help guys and gals, this is fun project for the kids and your donations will be used in the classroom for years to come. I'll post details soon about how I'm using the cards should anyone want to copy the program in their local school.