I bought an 11 pack of assorted sizes off of amazon. It's basswood and supposedly one of the easier wood to work with. I bought a pair of gloves too, to protect my hands.
https://smile.amazon.com/gp/product/B07S5HQHHB/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
https://smile.amazon.com/gp/product/B07PT63DQR/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1