I have been following ihanna's blog for a few years now. It's a joyful creative place--you'd like it! Twice a year she hosts a postcard swap, with international swappers (She's in Sweden). You join the swap list-there's a small fee to insure participation--and make 10 handmade original postcards. Right before Swap Day (May 1 for this one) Hanna will send you 10 addresses to send your cards. In return she will send your address to 10 othre swappers and you will receive 10 beautiful pieces of art! I can't wait.
Here's a link to visit her blog; it's too late to join the spring swap, but there 's another one coming in the fall.
Here are my 10 cards--pretty random, but I hope (ha!) to become more organized and try a series in the future.