OK, I might just take a crack at this but need some clarification.
1. May we use all sizes? 2, 2.5, or 3 inch?
2. How much articulation must they retain?
3. Will I lose my reputation as the world's laziest customizer.
4. If this works out, how can I make a living at it?
5. Should they be kid-safe? Or are they for "collectors"?
OK, 3 and 4 were out there.
How about the rest?
Anxiously awaiting your reply. . .