Old cotton shirts. No kidding. Especially if that movement was fairly clean...not sticky...
One 5" X 3" square will work fine. And soft. Do not flush the cloth!. Doesnt work well when it is sticky... You could end up using half the tshirt.
SORRY!!! But YOU brought up the subject! XD
These can be bought in bulk at Goodwill and thrift stores.... 500lb for $35 sometimes. Find all the good Textiles... Cut up and wipe with the rest!
Do launder them first!!
You're right, I brought it up. I'll let @mama-pepper knows. She still has a hard time flushing the bunnies.