I have another nice tip for making good sanding tools.
I like using the foam back stick type sanding tools. They have semi-hard flexible foam inside with sanding material bonded to the outside. The only problem with them is they don't last long before the grit is worn off.
What I do is buy the cheap ones at a Dollar Store and add better paper. I like the Norton 3X paper. It is the best sand paper I have ever used. You will spend about $4 for 3 sheets, but you will love this stuff. It cuts better and just does not die! I just use medium CA and glue it right over the abrasive that comes on the cheap sanders. When they finally do were out I just glue another layer over the worn paper. I keep them in different grits and trim them to different shapes. They work great! BD.
"Eat your pudding Mr Land". "I ain't sure it's puddin" James Mason-Kirk