Where to buy machines, dies & parts โ new and used.
โ ๏ธ Read first: button dies are not universal โ a die must match your press's mount/shank. For an arbor press, the vendors that openly support interchangeable / arbor dies are People Power Press and American Button Machines. Always confirm the machine + size with the seller before buying used.
New โ best for arbor-press / interchangeable dies
Reddit r/buttons โ people sell presses + dies and will tell you what fits an arbor press.
Facebook groups: "Button Makers", "Button Making Buy Sell Trade".
Cheapest (generic)
AliExpress / Alibaba โ "2 inch square button die" / "50mm square badge die". Cheap, but compatibility is hit-or-miss โ only if you can confirm the shank fits your arbor press.