This is a simple pattern to make for yourself and a quick, simple sew too.
Sketch a mask shape on paper, cut it out and hold it over your eyes to check the overall size. Best to make it slightly too big than too small and to have a flattish top and a more marked indent at the bottom where it sits on the bridge of your nose.
Fold the shape in half and trim to make it symmetrical.
Pin your paper on to two pieces of cotton (or fabric suitable to rest on your eyelids) and cut around leaving a 1/2” seam allowance, then pin the paper on some felt (or batting) and cut around that more tightly so your fabric outers are bigger than the felt
Stack the fabric with the two outsides facing and then put the felt on top, I stuck my felt in place lightly with a few dabs of fabric glue
Cut a piece of elastic that is long enough to go round the back of your head from outside eye socket to other outside eye socket. Place the elastic with about an inch sticking out over each side of the fabric stack and pin each end (this is enough to make the elastic stretch without being too tight).
Sew around the mask leaving a gap for turning (I left mine at the flat top), if your elastic is thin it might be worth sewing and reversing at each edge as you go over it.
Turn fabric out and poke out any caught seams before top stitching all the way round- this closes your turning gap and further strengthens the elastic fastening
I decorated mine with exaggerated eyelashes using a pearl pen (don’t think it is waterproof but twas a quick finish)