Thought I´d something on how I put leather on sword grips. The method I use involve vegetable tanned leather that is dyed with alcohol dyes. The grip has a shaped wood core that is fitted over the tang. The core is then wrapped with cord (linen or hemp) and given a coating of hide glue to make a good base for the leather.
The leather is put on wet and glued with hide glue. This has at least two benefits: you get time to work as the glue takes time to set, and the leather is soft and