as you can see i have the wooden and nylon disk burnishers from tandy but as stated before they only are one size, i also have home made ones made from oak dowels (in the drill chuck) and oak spindal from an ornate tabel leg just cut off and modified to do the job
I also have for geting in hard places hand burnishers the plastick one from tandy and again hand made turned out in a lathe and a tabel leg spindel,
the home made ones work better for me than the shop bought ones as you have more variation, Don