Greetings!

Oh, it will be fair. I am not trying to really make a huge profit on this (although, it would not be a bad thing, I guess). At the moment, I am thinking it would be at the low end of your range ($10-12 + shipping & packing) with possible lower prices for quantity / bulk orders. I will not actually set a price until I have them ready to sell, though.

I am actually using a cost plus model for this: I know what they cost to make & ship to me, add a pseudo-random number and charge that. Slightly over 1/3rd of my capital layout was for building the tool / die to make the custom answer icosahedron, so if there is a huge enough demand that I need to order more of them, it will get cheaper because I would not need to make a custom tool the second time around. (Do not hold your breath on that one, though...)