I made a holder for the tandy leather punch sets:

• https://tandyleather.com/products/mini-leather-punch-set
• https://tandyleather.com/products/maxi-leather-punch-set

Available in tall and short. The tall one can be stacked upon even when filled. The short one only if empty. I included room for all 12 tips, both handles, and both of the tools for removing stuck tips.