The original poster ask what "cost" of a P blank might be. Cost to me is what I pay for something. I think the cost of making a PR blank, once the process and formulas are mastered, and as Jay Pickens told me: "Don, It ain't rocket science", would not be much more than $1 to $1.50 per blank. This is calculating the resin, mold, dye, and powder costs for just that one blank. The dye, mold, and powder costs must be calculated for each blank...bla bla bla. BUT, selling blanks, i.e., the cost to you for one of my blanks would not be $1...This is where my labor and knowldege come in. Selling blanks for $6-10 would be fair, I think. Or as my dentits tells me: "The price of the filling material is $15, but knowing how and where to install the material is $250. Making precise measures and keeping good notes while making different colors will make duplicating the color or pattern a little more reliable. Just my thoughts.
Do a good turn daily!
Don