...pen pal love...

I'm so excited!  A group of girls in the indie biz class i'm taking decided to sign up for pen pals!  I don't even think i did this when i was a kid... i can't wait to send pretty letters in pretty pretty packages:)
i've also been thinking... i've seen a lot of ladies do fun exchanges.  and i really want to do that!  have any of you ever participated in one?
i think this is basically how it would work:
you sign up {duh:)} and are paired up
you talk to your partner and find out their likes/dislikes, hobbies, etc.
then... voila, exchange!
So do you girls know of any you can sign up for... or even better, interested in starting one?