Possible Clues:

• Fool about with a hard sponge
• Flesh brush
• A simpleton returned with hard, rough sponge
• A scrubber (John take note)
• Had not finished dessert - returned for sponge
• Clown turning up on a high with a scrubber
• The wrong way to greet the silly ass in Bath?
• Bath-time scrubber
• Sponge for dessert sent back with sigh of relief
• Washing aid