I would like to try to do some tank breeding. I was wondering if you could use some yarn or a store bought hand dusting mitt, or some thing like that?

I read a mop can be made of nylon yarn. Tied to a cork and float it in tank or pond.
Alternately you can by spawning mops on Aquabid in the breeding supply section.

or acrylic

Thanks I will try to make one. I plan to try to breed Black and Golds. I have a 75gl. tank and three or four breeds in mind. Is that too many in that size tank to breed? <_<