lame i know, but i am a member of pepsiworld.com.
they are doing a kind of fun way of helping the Second Harvest organization. if you are a member you can create snow globes and for each one created pepsi will make a donation to that organization. you can make more than one and it can be fun as well.
i have made one already....
http://www.pepsisnowglobe.com/_CT/A.1000.25034.3360.225837954291&eid=93735
(if you want to check it out...lol)