Thingiverse user 3dYeti made some excellent new designs (not copies) for Warhammer 40k miniatures. According to the legal notices of GW, they have no qualms with customers scratch-building figures, as long as they aren't selling them and don't substitute them for GW miniatures in official tournaments.
But, when you can make your own miniatures with a 3D printer, then Games Workshop swiftly breaks its own standards and strong-arms its fans with a DMCA takedown.
Here are the Thingiverse designs with DMCA notices:

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