How many ball bearings can we fit in the Genie Pact’s Bottled Respite?

I admit the last version of the Genie Warlock was a little awkward

Three New Subclassess: The Phantom Rogue, The Genie Warlock and The Order of Scribes Wizard!

Eureka!
Three subclasses reappear today in Unearthed Arcana, each with a new form!
DOWNLOAD:
https://media.wizards.com/UA2020_SubclassesRevisited_0512.pdf

Psionics Options Revisited, Spells & Magic Tattoos, Summon spells with Jeremy Crawford!

NEW Psionic Options Revisited 2020!

Mystics&Psionics!
This unearthed Arcana is for you! Enjoy the Psi Knight, Soulknife, Psionic Soul and New Spells!

DOWNLOAD NOW:
https://media.wizards.com/UA2020_PsionicOptions.pdf

Magical Tattoo: is the intention that you’d just find the magic needle and then once its identified be able to give yourself the tattoo?