I initially intended to make a box-style wooden scabbard core for the cleaver, but after examining how the Bruegel messer scabbard is constructed and contacting Tod's Workshop, I decided to see whether I could make a similar style here.
The messer scabbard is two layers of fairly thin veg-tan. The inner layer is unstitched, while the outer layer has a flat Z-shaped double whipstitch, unlike the double running stitch I'm used to using that leaves a ridge down the back. The double running stitch is used because it helps keep the stitching away from the blade so that it's harder for the blade's point to catch on the stitching when resheathing. An unstitched layer obviates that risk entirely, but I don't know how they manage to mold the leather to the blade with no stitching holding it in place.

In any event, I felt the need for stitching in the core layer, but also to keep the point at least somewhat away from the stitches. So after measuring and cutting the leather as usual, I trimmed it until it looked like it would just barely wrap around the blade and meet in the middle, then poked stitch holes at an angle so they came out the sides of the cut edges. I stitched with size 40 linen thread and soaked the core with alcohol. On the suggestion of Sword Buyers' Guide poster erichofprovence, I made the core and side pockets rough side out, in order to encourage better adhesion between them and the rough inner side of the facing layer when everything gets glued together. Because it seemed like it was going to be on the loose side, I tried to make sure it dried more snugly by warming it gently over a heater to shrink it, letting it spend plenty of time off the blade, and not wrapping the blade with tape.

The side pocket for the carving knife offered no such easy solution. The 2-3oz. leather is too thin to poke angled holes out the edges. A normal butt stitch would leave the thread exposed to the knife point. A normal side welt would add unwanted bulk, and a double running center seam would create a ridge that would either prevent the pocket from lying flat against the core (if it were on the back) or be visible through the facing (if it were on the front). What I settled on was to mold the pocket so the seam ran along the blade's spine and slightly to one side and down, so that it's not threatened by the blade's point or edge and lies flat against the core.
An interesting thing to note is that the rosin varnish, even after drying in the sun and then ageing for almost two years, still gets sticky whenever alcohol gets on it.
The side pocket for the fork was simpler, and in fact I think it's better not being molded, so the leather doesn't shrink in such a way as to prevent the tines from sliding freely in and out. I did add a very small, thin welt at the tip, but this doesn't seem to prevent the tines from sliding between the stitches if the fork is pushed in too far. I don't think of this as a serious problem.
For the time being, I'm instead wondering whether to turn the fork pocket with its side seam inward or outward. The cleaver blade being a relatively narrow one, the main scabbard doesn't leave room for the knife and fork pockets to sit separately like in most hunting trousses. Instead, they'll need to overlap. For me the next question is which way will cause less of an unsightly ridge and allow the facing to lie most smoothly.


A separate issue is whether to include a leather plate with a pair of slots for the knife and fork to pass through, covering the mouths of the side pockets. Real hunting cleavers normally had a metal plate (the metal being whatever steel, brass or silver the rest of the scabbard mounts were made of, attached to a worked metal hoop that went around the entire scabbard, presumably to help prevent the mouths of the side pockets from being crushed) although I've seen one that appears to be made of either wood or leather, and absent the ability to weld, I may be forced to rely on leather. However, there may not be room for a plate here at all.
All this relates to the question of how much metal hardware I'm putting on the scabbard; the Bruegel messer's scabbard, for comparison, has none at all, and although they're from slightly different time periods, I can't help but think of the messer and trousse as forming a matching set. If I made a chape and throat for the cleaver, I'd feel compelled to make one for the messer as well.