Since this has sat here a few days I'll take a stab.
On the blade, nothing, I don't use a buffing wheel on my blades, and don't much care for blades that have been buffed. It is just too easy to buff out nice sharp grind lines.
For handles, when I do buff, I just use a sewn (spiral or straight) cotton buff. I have a loose buff, but I don't care or it. too grabby. When you get to this point in making a knife you don't need it too grab, and get tossed around the shop.