i have a few swimbaits for freshwater that were made with the 3D printers, guys out in cali are making swimbaits with these things and selling em for $75-250, depending on size and design.
the machines have come so far and the materials have dropped so much in price its starting to make sense.
the one i have an really like is a 3 piece bait, scanned from a real trout then modified with the program, super durable and they guy can pump the pieces out.
the material isnt as brittle as a lot of the resins and you get a consistent product
think for stuff like swimbaits where the market allows for $200 and up baits its a no brainer.
heres a pic of one of the 3d printed baits I own, trout body, bass paint