Someone could make a few bucks here I get a total cost of $70.00 + shipping of maybe $25.00 so if sold for $150.00 the person is making about $25.00 per hr for total time not including advertising etc. If I made one for sale I would probably charge $200.00 becasue I am retired and don't need to make money anymore.
7" Chicago Polisher / Sander $55.00
(Their ad) Strong 9.8 amp, soft-start motor and electronic variable speed give you the power and control that you need for professional polishing and sanding. 1,000 to 3000 RPM for optimum polishing All ball and needle bearing construction for long life Side handle.
http://search.harborfreight.com/cpisearch/web/search.do?keyword=buffer+polisher
Blue bucket in my prior post $6.00
1 3/4" 2' X 4' plywood $6.00
Contact cement $1.00
Scrap rug pieces $2.00
Time to make after making the first one is about one hour
Packing and shipping about on hour.
I think I will add a cardboard top or something to keep the dust out. This would also make it easier to ship