Slangvel is a custom hat maker who specializes in modern-era military headwear. He is also a disabled Veteran. Somehow he comes up with some great camouflage fabrics and every once in a while he catches my eye with something like this French Lizard Pattern. One of his specialties is the M43-style cap, which has been adopted at one time or another by several armies. In fact, they are still used by the Germans.
In addition to M43s, Slangvel also makes Boonies, Rhodesian-style kepis, Bigeards, Helmet Covers and the occasional Smock. To keep track of what he has for sale, follow him on Facebook or eBay.