When was the last time you cracked open a Molson? For me, it was too long ago. Had I checked more recently I would have seen that they have not developed beer coasters that contain seed. When activated by water (or, one would imagine, beer) the coaster plants a Black Spruce tree.
There are more details on their Facebook page (naturally), but you too can buy your very own seed coasters right here from a company called Botanical Paperworks. They cost from 60¢ to $1 each – and duh – they’ll plant a variety of plants and flowers.