With many thanks to Penn, I bring you this late-breaking and new (to me) use for canning jars rings!
Here, you see K-daughter introducing a wide-mouth ring to my granddaughter, Baby A:
What does Baby A think about these things? She thinks . . .
. . . they're great! Easy for a 3.5-month-old to grab and wave around! Shiny!
Baby A loves them so much, she doesn't want to share.
No, not even with her buddy, Miser Dog.
Quick riddle for you: Why is a canning ring like a key ring?
Answer: Because they both go in your mouth, silly!