>>327199Slab handles are the ones that match the shape of the metal at the back of the knife, like the one I posted upthread and the third knife (which is my "camping around lots of water" knife) in pic related. Think Ka-Bar Becker. Here's one being made:
>http://www.northcoastknives.com/northcoast_knives_tutorials_First.htmStacked leather washers look like the second and bottom knives in pic related. You stack washers against the guard then hold them on the back with something. Think Ka-Bar WWII Marine Combat Knife.
Here's one of those being made:
>http://www.northcoastknives.com/northcoast_knives_tutorials_hints_tips12.htmYou can stack other stuff in with the leather. A full tang puukko with a rat-tail tang will be a kind of stacked handle as well, but the stuff in the stack will be things like reindeer horn, wood, brass, and colored washers. Top knife in pic related is made that way.
You could also do hidden tang handles where there's no metal or attachment of the handle material visible. Those can be full tang or partial tang as well.