Making a wooden scabbard with leather facing, using an Ulu knife for cutting and shaping the leather. https://youtube.com/shorts/eBPVHiuRU64?si=YWEpGThdhEYUZAtc The following thread link is on how to craft an Ulu knife from scratch...the OP will enable you to use the same knife sheath making techniques to enable you to make a leather sheath for your Ulu knife too. Making a Small Ulu Knife
Very rewarding and so are pistol holsters. You just have to learn to use an awl and heavy sewing needles. A stitching pony is very helpful to hold the work.
