Sponge Welcome Mat

Not to be confused with the Welcome Mat or the Bubble Welcome Mat.

The Sponge Welcome Mat is a members-only underwater den item. It was formerly sold in Sunken Treasures and first released in March 2012.

Appearance
This item is a rectangular mat that has the word "WELCOME" printed on it in large letters. The mat appears to be made of a sponge-like material that has many holes in it. This item has multiple color variants.