Anyone who knows mail artists or makes mail art, knows we love the insides of all those security envelopes. Great patterns make for wonderful collages and work well in the making for other mail art itself. I myself like the cellophane windows to use in collage as you will see in the page below. And of course some wonderful stamps from the stash.
I even used a bit of security envelope to make a tiny letter and added a stamp.
An intersection of patterns.
Linking to the Postal theme at Art Journal Journey