@Paka You attempted to troll my post where I listed four random examples of gun gear with skulls on it, out of the probably thousands, and latched onto one of the two military units that I listed use the emblem as well. That post contributed nothing to this thread but a bit of failed sarcasm. And I read your last post twice and you still aren't making much of a point, but I will continue..
As far as skull lovers being the minority, you have to remember most of the knife buying public aren't "knife nuts" who are on blade forums. Lots of people would still buy the knife, even if we knife nuts reading this forum don't particularly love it as a whole. As far as skull popularity on gear, let me get more specific for the point of this thread.
Skulls on knife gear:
Busse Combat. Most everyone on this forum is somewhere on the spectrum of at least familiar to fanatic about this company.
Emerson knives.
Strider.
Aftermarket skull accessories for knives.
Steel flame Emerson clips.
Hinderer accessories.
Starlingear.
Uparmored. A company who almost bases it's whole existence off of painting skulls on your knives, for a price.
I suppose I could find many more examples of skulls on knives or related gear but I believe that skulls on the logo of industry giants such as Busse and Emerson says a lot. Add into the mix that the stand up gentlemen at Steel Flame have found a huge market for skull related knife accessories, people put them on their Emerson's and Hinderers, then there are other industry giants coming into play with the Starlingear and Strider collaborations. As I mentioned Protech has a line of knives with skulls on them that I assume to be successful, as they are still in production, and if a company like up armored can exist because people ship knives to them to have skulls painted on I would have to say that the skull-on-knife industry has quite a following.
I am not trying to argue with anyone who doesn't particularly like skulls. I am saying that whether everyone may realize it or not there is actually a big market for people buying knives with skulls on them, or putting skulls on their knives, one way or another, after the fact.
I think this project from the OP is going to sell like hot cakes...shaped like skulls