Arcs Player Token Tray/Storage
I wasn't quite happy with any of the existing player piece trays/storage holders so I made my own. Fits the base game cities, starports, point trackers, agent meeples, and ship meeples. I don't have the miniatures pack so I can't test how they fit. Four of these storage boxes will fit in the same section as the player token storage in the excellent full game organizer set by smilingbandit2 (https://www.thingiverse.com/thing:6707272).
I used 5x2mm disc magnets I found on Amazon for attaching the lid. They're a bit of a tight fit but a little pressure with a dowel will seat them and means they don't need to be glued in. Remember to check the polarity so the lid magnetizes properly.