You mean like this:
ULTI-MIT Wash Mitt & ULTI-MIT Scrubber Wheel Mitt by Lake Country
I have tried sheepskin, regular grout sponges, the Edge scmitt, MF mits, chenile mits, natural sea sponges, MF covered sponges, the Bone, LC Ulti-mitt original, and double sided, and just got their grout...