Further to my inactive mana crystals, I shall also be selling lammie bags at the next event. They’re made of muslin cotton and at 8cm x 10cm just large enough for a card.
I’m also considering selling small glass vials, but the ones I’d be happy to sell for a few rings are much smaller than the one in the photo (1.2cm diameter and 1.6cm tall as opposed to 3cm diameter and 6cm tall in the photo). If 2cm diameter and 4cm tall made all the difference then I could stretch to that.
How big are your smallest potion bottles?