It may help if pax expressed their intentions / desires with the Stateroom Host at some point after the first day (evening would work) into said sailing, indicating they would love and appreciate some extras to take home if possible. And be specific about which product you desire.
We often communicate with our SH with notes. We write notes, ... he writes notes. lol. Life is good.
That has always worked for us.
May your product sustain you till the next sailing.
Now of course if the daily replenishments are missing or inadequate, than make a call.
It will be taken care of aboard.