Custom shaped abrasivce discs

[tritrek]

I've seen custom made, custom shaped sanding discs used by many (well, on the web, etc..) even PIMO mentions in in its book on p.78. It's a custom shaped (wooden) disc coated with some abrasive coating and mounted on a lathe or a bench grinder.
I cannot imagine any other way to make such a thing as by coating that disc with a thin layer of somewhat glue and then cover it with different grain of sand. I don't know how durable and even this would be...
There sure is a product somewhere, I just cannot find it...
Or is that rubber disc with velcro fastening enough?
Do you have any suggestions?

Thank you very much!

[Frank]

Velcro works just fine. Use the sanding discs with foam padded backing.

There's another thread here somewhere where I illustrate my homemade ones. Kurt makes the same attachments for sale.