A.I.- Using window envelope - Journal card

Reusing a (window ) of an Envelope as a pocket for a journal card.

Cutting the used envelopes with window to fit as a pocket on a journal/art card.
Decorate the base of the card with a paper napkin. Then adding the envelope window to it forming a pocket. Slide in the pocket any extra item(s) into pocket.

You can use an index card, card stock or any size for your base as long as you can fit that window on it. Any other decorations up to sender. Make it so you don’t have to bend the card to mail it. Make it so swapper can use it in their journals.

Just one to one swapper. (EDITED)