This inexpensive rack is made from a couple “common boards”, each roughly 1” thick. Standard utility hinges are used to make it collapsible and a chain prevents it from opening too far when placed on a smooth surface.
One one side the pegs run across, allowing it to hold longswords, greatswords, staves, and daggers.
On the other side the pegs are vertical, allowing for shorter swords.
Danish oil makes for a cheap protective coating that can be reapplied as necessary.
You’ll need to a drill press and a Forstner bit for the peg holes. Glue is not required, as you can press-fit the pegs. (Plus if a peg brakes, the lack of glue makes it easier to remove and replace.)
The base boards, which are required for stability, should not be flush with the ground. By raising them up somewhat you can clear ground debris and use this on uneven surfaces.
The bottoms of the legs are cut at an angle to match the desired angle of the stand, all other cuts are square.
If you want to stain the project, do so before you attach the chain. Otherwise it won’t lay flat and be a pain in the ass.