If you can't find any already made, most ladies just make them for themselves they are simple to make ,
Just cut tiny little holes into the cosmetic wedge with the tip of your scissors till you get the correct size you are happy with. I have some with larger holes and some with smaller holes. Remember to cut or round the corners a bit then practice, practice till you get effect you are looking for.
MacPhersons sells the sea and kitchen type sponges already made with handles they are great to have also.