If you have cut or engraved any leather you know the smell is strong on the piece. What are the methods you have used to remove the smell from find leather pieces
Depending on the piece you can wash it with soap and water, and then condition it (coconut oil is a great condition, though there are many for sale if you want to get fancier)
If you don’t condition it will dry out and harden…which could be what you’re looking for, but if its not…
wipe it with a baby-wipe, then a paper towel. Then do whatever finishing you’re going to do.