Amazon has Esonmus 20 Pack Multi-Use Magic Scrub Sponge on sale for $5.99. Thank you Mike for posting.
Notes from Amazon:
Non-scratch Scrub Sponges: Made of Premium scrubbing material helps to tackle tough chores, durable and long lasting. Fast cleaning without scratching, Comfortable and easy-to-hold shape, It foams easily even with a little detergent.
High density sponge with good rebound resilience, hard to deform. Cleaning in the dishwasher & reuse!
Our double sided sponges are using the high quality viscose for a superior non-scratch clean that last up to 50% longer than traditional cleaning sponges.
Remove all kinds of hard dirt easier, Widely used in your kitchen, bathroom, garage, outdoor to wash dishes, pots, car, glass, table, wash basin and much more.
100% Exchange Guarantee: If you aren’t completely satisfied with these scrub sponges, we provide a 100% exchange defective item in 30 days. Please contact us via the email, we will reply you within 24 hours and solve your problem. We stand behind our high quality products all the way.