I was looking through the posts of BLDBLOG (Click the title of this post to get there) and came across this piece of Direct Marketing for Tur & Partner, landscape architects. Apparently you punch holes in the cover and seeds that are embedded in this business card sprout when buried. It's probably the best business card I have ever. Not only is it recyclable but you get some flowers to add to your garden.
It reminds me of a post I saw on gardenweb where a member had taken a tour of a National Park and was given a piece of paper that had seeds embedded and he was told to do was to bury and water it.
Which makes me wonder if someone could do something similar at home. I remember seeing a HGTV program once where the showed you how to make your own paper. All you needed was a sieve in the shape of a square and a tub filled with water and used paper. I don't think it would be that difficult to just add some seeds in the final step to make your own business cards impregnated with seeds. Although I'm not sure how you would print on the paper and if passing it through a printer would damage the seeds. Perhaps maybe writing on it by hand or using a rubber stamp?
Seems like a good project for some crafters.