Yes any sponge, as long as they aren't pre-soaped. All you do is soak the sponge in distilled water and put it on a small plate inside whatever you are trying to season. Close it up and leave it closed, check the sponge in a couple days to see if it dried out, if it did re-soak it. The reason sponges are better than the shot glass method is that there is more surface area on the sponge.
