ZEN USA~ Decorate an envelope

This has always been one of my favorites.
Decorate an envelope, leaving enough room for the address.
Tuck a little note or something inside. (The swap is for the envelope, not the tuck-in!)
Add your info so you can get rated.
Drop it in the mailbox.

That's it. The rest is open to your own interpretation. You can do black and white, color, whatever. You can draw something then tangle it. You can do whatever you want, as long as it involves Zentangle.

Have fun with this one!