After a couple of trips to NYC and a vegetarian festival in Washington, D.C, I had some cards piling up to post. Quite the variety of shapes, sizes, and one is even a sticker [Action for Animals]. The two round ones above [purple and golden yellow] are actually the front and back of the same card for gobo. Very often, The Bacon is Not an Herb card [bottom row] has a QR code sticker on the back as well [seen to the right of that card] — kudos for great eye-catching use of technology!
An ghost image continuing to appear in one’s vision after the exposure to the original has ceased.