I could have sworn there was a penpal thread around here somewhere, but all the ones the search turned up were years old...
DD is nearly five and we've just started homeschooling. As part of English I'm encouraging her to write letters. She sends them to her great-grandmother (Australia) and her aunt (England), but neither of them really write back. They appreciate them and all - Grandma calls, and my sister emails, Skypes and sends the odd postcard if she's on holiday - but I think DD would really love the "send a letter, wait for the reply, send another one" give-and-take thing, especially with someone her own age (ish).
I broached the idea to her today and she seemed keen. So!
Let's see... she likes movies, superheroes, ballet/dancing, music, and is very into drawing. She's also heavily into brides at the moment - most of her letters include a drawing of a bride and a bevy of bridesmaids. We're Christians, homeschoolers (obviously), we live in the country on an orchard with chickens, and we're in New Zealand. She has a little brother (21 months)... and that's all the relevant information that comes to mind!
She's a tad precocious - would probably interact pretty well with someone 6-7ish, as well as kids her own age.
Any takers? :p