Confirmed - the candy tin does replenish once a day.

Won these as part of my Droughtman prize grab. One generates candy as rubbed and the other generates chocolate. I believe the candy tin is a once a day and the chocolate tin is once per week replenishment, but will test it again tomorrow.

CB is 1m to Jhynnifer (PC)

Here's the log of the candy tin:

You remove a shiny pale blue tin from in your white linen cloak.
>look in tin
That is closed.

>open tin
You open a shiny pale blue tin.
>look in tin
There is nothing in there.
>close tin
You close a shiny pale blue tin.
>rub tin
You rub your pale blue tin.
Odd, the pale blue tin suddenly seems a little heavier.
The pale blue tin is no longer empty.
>open my tin
You open a shiny pale blue tin.
>look in my tin
In the pale blue tin you see a piece of winterberry candy, a piece of bitter coffee candy, a piece of smastanberry candy, a piece of tart lemon candy, a piece of raspberry candy and a piece of bitter coffee candy.

Here's the log of the chocolate tin:

You remove a dark brown-striped tin from in your white linen cloak.
>open my tin
That is already open.
>look in my tin
There is nothing in there.
>close my tin
You close a dark brown-striped tin.
>rub my tin
You rub your brown-striped tin.
Odd, the brown-striped tin suddenly seems a little heavier.
The brown-striped tin is no longer empty.
>open my tin
You open a dark brown-striped tin.
>look in my tin
In the brown-striped tin you see a piece of toffee-filled chocolate.