Needle felting, so called because you felt you're fibres with that rather vicious needle with tiny barbs on. You stab it up and down, in and out of your fibres. The barbs cause the wool fibres to mix and mingle together. A first for me! Yep, I've wet felted but never needle felted before.
Well if you keep your fingers out of the way and you're not in a hurry...it's okay.
Tomorrow it's back to familiar territory and the sewing machine.
I'll keep you posted.