Made a new sanding mop today and followed Steve's instructions to the letter, DON'T use your band saw to cut the sand paper, it works fine but it wrecks the blade, also dulled the drill bit, I am hopeful that I will be able to resharpen my band saw blade if it is not bad.
The sanding mop turned out fine I used a roll 150 grit paper I had given to me it is a bit stiff but should be OK, not sure why they are not available to buy in NZ. I have also looked around for a flap sander but as yet have not seen them
Jimbo