http://www.flickr.com/photos/cedu/
there are some pretty classic cedu cards on here if you have not seen these yet.
http://www.flickr.com/photos/cedu/446758528/
that's ridiculously unfair. We didn't have a swimming pool, we had a leech-filled lake. Who do I write about this injustice?
What, you didn't like the giant biting water beetles and the pond snot?
Actually, I had no idea that the pond harbored leeches. None of them ever attached themselves to me or anyone else I knew there.
As for the greeting card idea. I think it needs more hashing out, especially in terms of audience and possible income. As it stands now, your audience is too limited (although in about one generation, when most people have either spent some time in behavior mod, LGAT, or sleeping under Oprah's bed, I think there will definitely be a market.)
In addition, an animation for this would best be done in flash, not 3D, and as much as I am a die-hard 2D guy, I absolutely suck donkey balls at flash.
This is also my graduating quarter in school, so I will pretty much have time for absolutely nothing. Hit me up in march or april after the dust clears.