Cabinet scraper, camp knife work fine. I once ground a 45 degree angle in an old file and it did wonders on raw horns and even had a nice handle. Wish I could remember who borrowed it.
You can seal the gaps on the butt end of the horn with some beeswax, just don't leave it in the sun. Or melt a bit of carnuba into the gaps, and then you can leave it in the sun. Either will keep it water tight approximately forever. I like the way that end plug is formed. Rustic. The store bought front plug needs chewed on or something to give it some character. I tend to use excess ramrod cutoffs to make my horn plugs and cut some rings in them for decoration and a better fingerhold. Or a stick. I use a lot of sticks. Woods is full of them.
You can seal the gaps on the butt end of the horn with some beeswax, just don't leave it in the sun. Or melt a bit of carnuba into the gaps, and then you can leave it in the sun. Either will keep it water tight approximately forever. I like the way that end plug is formed. Rustic. The store bought front plug needs chewed on or something to give it some character. I tend to use excess ramrod cutoffs to make my horn plugs and cut some rings in them for decoration and a better fingerhold. Or a stick. I use a lot of sticks. Woods is full of them.
