Susanna, to answer your question: Technically, they do (well, mostly Hot Toys does). If you are a member of Sideshow Collectors (or Sideshow Freaks), and you check out the "Interest Threads" or "For Sale" threads, there are literally hundreds (thousands...?) really of unlicensed properties, mostly movie related (like Lady Sif/Jaimie Alexander's character in the Thor movies), which I am a part of. Now Hot Toys hasn't (and probably won't) make a figure of her, but they hold the licensing rights for 1/6 characters pertaining to those movies, and the ultimate license holder is, of course, Disney (that corporate beast that isn't afraid to demolish any and all those who get in their way). So, yes, by making a completely custom figure of said character, they are violating a few dozen licensing rights. Just like all the other custom threads, which always leads into the bootleg of a bootleg argument (but that's a discussion for a different topic). There is currently an interest thread started for said Nebula from Guardians, as it looks like there is zero chance of HT making her, as well. But as long as they hold the license, much like they hold the licenses for Aliens and Predator (and do nothing with them), they have the legal right to crush anyone who infringes on that, as does Disney.