@Mars5l.
Take a stiff paper board or card board and spray it bright yellow, or red, or your favorite color.
Wrap Saran Wrap, or that new Press n’ Seal works well, over the dried target board.
Spray this with flat black paint.
Print out what ever you want to relieve your stress upon.
Attach your target.
A cutout of thicker paper can be laid right on the paint to glue it to the board, provided the black paint won’t bleed through and ruin the picture of the Ex, um, target.
Nice! You’ve just made your own Shoot and See targets!
When the bullet strike the plastic wrap the paint will flake off revealing a bright yellow, or whatever color you painted first, corona around the hole.
Not difficult, but not something to just whip up on a whim.
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Also, Day-Dots.
In the food service supplies there are one inch, colored circles to date food with. Prepped food gets the determined color expiration day-dot or the date written on it.
They come in all the neon bright colors, with an adhesive that works on condensated and plastic containers, and in freezing environments.
Thousands to the roll.
I procured mine from a restaurant’s Maître d’.
She was beautiful and amazing.
Perhaps there is a Grainger book for restaurants?