AVAST! Ye guys may not be knowin' me. I be a developer fer Hexxit 'n 5K. Some shout I be owner, but I would hardly qualify as that considerin' how wee the hour I spend aboard.
Ye may notice that we've got a multi-ship setup goin' fer Hexxit now. That came wit' a handful 'o problems. Ultimately, it seems as though th' players have chosen to link th' economies 'n items. It took a few days but I brewed up yonder UPS (Universal Postage System.. harharhar) fer ye.
Th' UPS system be intended to transfer items easily between players, accounts, or servers. It takes an item from ye grubby paws 'n stocks it in th' warehouse fer a small fee. Ye can then receive it later, regardless 'o what ship ye be on. It does NOT take in to account if an item be banned, 'n any banned items gunna be confiscated automatically. Also, 'tis not be intended as a storage method, only fer transfers. Items, on every hour, be wiped from th' warehouse. Post it, 'n then receive it ASAP.
/ups version - Current version of the UPS.
/ups check - Checks how much postage costs.
/post - Takes an item from your hands and sends it to the UPS warehouse.
/post <name> - Takes an item and drops it in another player's warehouse.
/receive - Receives an item from the warehouse.
/receive <number> - Receives several items from the warehouse.