Leather Felter's Finger Guards from Felted Sky:
"Do you find that you poke yourself a lot when needle felting? Are you new to felting and worried about stabbing your fingers by accident? Then these lovely finger guards are for you!
No matter how experienced, in needle felting we all stab ourselves at one time or another. Unfortunately some people seem to be more prone to it than others. These finger protectors are the best remedy we have found. They are imported from Germany and made of high quality leather. Thick enough to be effective, but supple enough to still allow for a good range of motion. Truly the "Goldilocks" of leather thimbles... just right!
They can be used for anything that hurts or taxes your fingers. We put them on when tightening the screws on embroidery hoops, and when we're folding lots of instruction sheets a once or working with wire.
One size fits most adults. You will receive two guards: one fits the thumb and one fits the index finger. Or move them around to other fingers if you need to."