If you have a 1/2 or 9/16th hollow hole punch and a cardboard milk carton you can stamp your own out of the milk carton.
You can use 10-20 grains of corn meal instead of a wad.
You can punch wads out of 100% wool felt used to insulate around windows and doors.
Telephone a guy named Mike Eder in Indiana. Just ask for the 1/8th inch 50 caliber felt wads. (lubed or unlubed) $3.75 for 100 packaged. The company is Flintlock Inc. I always get the unlubed. Since they are felt they will not burn and I see no need to contaminate the powder charge with a lubed wad.
His phone number is 317-933-3441 (last I knew he was still in business)
Last option... shoot that White without a wad. They still shoot great.