Hi,

Anyone knows where I can buy one?
To be exact, I'm after something like this: http://www.wikihow.com/Make-a-Drill-Disc-Sander

I would do it myself but it's probably very difficult to balance. I have some sanding to do (deck and window frames) before painting and I already have a power drill.

I'm also open to other suggestions if you have any. 

Thanks.