This is done using a military pull the dot snap that when snapped prevents the choil of the knife from coming out of the sheath. Works well on knives with larger choils. Shown on a modular sheath below.
I make a Japanese style leather saya with a frog that holds the saya. This can be done in different ways depending on the size of the knife.
While I am not personally a huge fan of these, for some smaller knives they work quite well. Makers love them because they require a LOT less leather and a lot less time to make. If you notice my style of knife sheaths, you don't see this style being real common to what I make. I don't sit down and try to figure out what is the fastest easiest sheath to make... I sit down and think about what is the most robust and versatile sheath... what is the best way to make it, not what is the fastest or cheapest.
Traditional Knife sheaths start at $75 for up to 6 inch blades. Every extra inch is $10.
Japanese saya style with frog start at $125 for up to 6 inch blades. $20 extra per inch over 6 inches.
Modular sheaths start at $125
Basic Retention straps and snap locks are $25
Basic tooling and stamping is free.
Dragon Scales, Basket Weave, and repetitious patterns are $15 for up to 6 inch blades. $5 per inch over 6 and only covers one side of the sheath. See this page for photos.
Thumb-break style $25
Two-tone color: $20
Exotics: Rattle Snake, American Alligator, stingray, and beaver tail: add $100
Most other exotics add $50
Exotic prices are for up to a 6 inch blade. Longer blades may be extra.
Danglers and straps are $25 each.
Spots .30 each
Sewn belt loops $10 each.
on Exotic hides: I can get my hands on lot's of different hides like
beaver tail, Teju lizard, crocodile, ring lizard, shark, etc. I keep a
limited stock of these because, well darn it, they are expensive.
Contact me for what you would like and price... these are generally not
cheap. If I need to order it in, it usually only takes a week as my
supplier is pretty quick.