I have made several knife handles for different blades. This handle for Brisa Bobtail is easy to make and fastens reliably. I have decorated the current version according to my Love Your Enemies project, but I include also a blank side for you to decorate.

Materials:

The stainless blade can be obtained from Brisa. It is available in two versions.
https://www.brisa.fi/en/brisa-bobtail-80-f
https://www.brisa.fi/en/brisa-bobtail-80-f-6231

Two M4x12 stainless screws with nuts

Clear sealant. I prefer sealant intended for fishing lures, since it is waterproof and tough. Be sure to get enough of it (1 liter can), because the finished handle will be dipped into it several times. If you have a choice, I recommend sealant intended for wooden or plastic lures, because the one intended for metal lures is very hard and may crack.

CA glue, which does not dry instantly.

Printed sides and insert. If the knife is not exposed to excess heat, it can be made of PLA. For heat-tolerance, I recommend ASA or PET. ASA is easier to sand and paint.

Construction - one side at a time:

Sand and paint the sides. Test that the insert fits firmly in place.

Push nuts in the holes of one side. This side will be glued first. The nuts should fit firmly, but if they are loose, fix them with glue. Spread CA glue on the correct side of the handle section of the blade. Attach the side and guide it in place with the screws. When aligned, tighten the screws and let the glue dry.

Spread CA glue on the hole of the insert and glue the insert in place. Press it firmly down. Let dry. If after gluing the insert protrudes the steel, sand it even.

Remove the screws. Spread CA glue on the remaining side of the handle and on the insert. Glue the other side of the handle in place, guiding it with the screws. Align it and tighten the screws.

Loosen one screw, but let is stay in place. Apply CA glue on the threads of the nut and tighten the screw well. Repeat on the other screw.

Dip the finished handle several times (at least 5) in clear sealant, letting it dry in between. IMPORTANT: Immediately after each dipping, rotate the knife in different directions in your hands as long as the sealant is in a flowing form before it hardens, Watch the surface to make sure the sealant settles evenly without flow traces. Never touch the handle in this phase!

Let the finished knife rest, for several days, for the sealant to harden well. If the handle feels too slippery, wet sand it slightly.