A friend uses these threaded storage canisters to make her own stack. You can get some wherever they sell beading crafts, including dollar stores:

https://www.amazon.com/Stackable-Containers-Fengek-Cosmetic-Organizer/dp/B0922SQHQW/ref=mp_s_a_1_4?crid=3SDSN2G1E0CYI&keywords=stackable+bead+organizer&qid=1686005552&sprefix=stackable+bead+organizer%2Caps%2C142&sr=8-4