No one seemed to have a low profile mount, so I made this, I used two “ez anchor” wall mounts per bracket, youll need two brackets for one sword. This design takes into consideration the large diameter hilt that the twilight princess sword has, but it should still work for other variations.

The sword pictured is 3d printed, but solid acrylic, so its ~6lbs im guessing, and the mounts hold it just fine.