As a side note, today I set out to make some swabs for 1" bore. The synthetic sheepskin that I use in my leather shop is a bit too "hairy" for a 1 " bore, so I wandered down to the hardware store to see what I could find. In the automotive isle, they had this glove thing for putting on your hand and washing your car. It was made of a lighter synthetic wool... worked perfectly. Cost about 5 bucks, and there is enough material to make maybe a dozen swabs. A 3/4 inch dowel works nicely. I am still gluing it with Barge Cement, and gluing and nailing the end down with a copper nail (I'm not talking a roofing nail... a smaller cut nail like would be used in furniture repair)
Also, while swabs seemed to generally be pictured in pairs, I like to use 3 of them... One to wash, one to gather up as much of the water as possible, and the third one to actually dry the bore. Additionallly, the synthetic wool does not retain water like cotton, so they air dry quickly.