It looks like Baron of Dice has some of their offilical licensed Guild Ball dice online now!
Have a look: https://baronofdice.com/collections/guildball
We’re still missing sets for Morticians, Lamplighters, Miners, and Blacksmiths, but I really think the Baron did a wonderful job with all the others!
I already have too many, but am tempted by the Alchemist dice.