I decided i will try my hand at making a brush using
leopard wood it comes in 1 1/2" x 1 1/2" square stock would that be perfect for a handle or would i need something in 2" x 2"
Unless you are after a 30 mm brush, 1 1/2 x 1 1/2 is all you need. That is the most common rod size for plastic turning blanks intended for have brush handle use.