I don't see that happening to be honest. Giveaways are nice. Cool statues are cool. But I can't imagine this being an incentive for someone to hop on the patron train. Certainly not enough to cover the production and shipping costs and make a substantial amount for the project. That would defo be a loss-maker in my opinion.
As a one-off thing to do for fun and, like you said, to see if these are good enough to market, I can get behind that, but I don't think it would be a good business decision to do these regularly.