We wanted to use some short-handled hammers/mallets for children's leatherworking; the $3 PITTSBURGH 8 oz. Stubby Hammer seemed like a great solution, but we wanted a soft-face on the hammerhead.

Modeled parametrically in F360, this model is 1" diameter by 0.5" height. (Let me know if you need other sizes, but don't know how to adjust the model parameters, and I'll size it for what you need)