nternational Girl aerogrammes. Check 'em out!
These are the fold-and-seal letters of which I'm so enamored. I've seen them in various styles and alternate themes, like the very fun Mr. Lunch series as well as Gumby & Friends, and then there was a crappy set that featured a talented French photographer, but when you folded them they never came out even and overlapped their edges or folds.
These look fantastic, and they come in various international themes, such as Chinese deco, Japanese kanji, Arabic birds, &c. You order them in packs of ten, which includes five motifs and two of each motif, and it comes down to US$16 (incl. shipping & handling). These look so interesting and exciting, I anticipate picking some up very soon.
I heard about these through the Postcrossing Web site: they've recently hit 4,000,000 postcards exchanged. I went back through their blog and discovered that Int'l Girl aerogrammes were the prize for the 3,000,000 postcard contest--users had to guess which countries would be the sending and receiving nations. Layers upon layers of fascinating information, for me.