For those sewing face masks that use the elastic, string, or bias tape threaded through the ends of the mask, here's a little helper.

Push the superthreader through the mask, insert elastic through the hole, fold it back and pull the elastic through.

Easier than the old safety pin threading by far!

Can also be used to straighten things if you are making a style that requires turning the mask inside out. Helps get those corners pushed.