I had a couple of knives that were too shiney to use and I had a little Duracoat left so I gave it a try.
Here's a SOG SCUBA/DEMO I painted, the other is a Badger Ordnance Limited edition I bought (I didn't booger with that one!!).
Here's what it originally looked like.
Here's a Cold Steel Bowie... It was black for a while, then polished steel and now OD Green.
This Duracoat is easy stuff to use. I painted two H-S Precision stock yesterday, found some carabiners that were shiney and they're OD now, my pocket knife had an OD blade and I was thinking about trying it on my Colt AR's. (My wife hides her stuff when I get the paint out now... How about OD or SOCOM grey cutlery, I could do each persons service set in a different color!)