I've just come across these in a box of firewood from a dead neighbour's garage clearout - this one is much more rounded. I think I'll do a small mallet, but I'll do the handle in two parts to part fill the hollow that will be on the top. The bottom hollow I can mostly cover with the design of the handle.Are you thinking that this was previously a bowls ball as well?
To me it looks like a"Chog" which was used to take the slack out of animal tethers. Although the hole is usually rope sized.