With no particular authority (or endorsement), just what I’ve used:
Something I’m grateful for.
An update on a (usually work related) project I care about.
A cool program I learned about recently.
A policy that really would make life better.
What a particular emotion feels like to me, where it happens, and an image that fits it (use a list of emotions from somewhere).
What I spent the most time on that day, and how I think my relationship with it is.
A haiku (or 3) about something that happened today.
Game design ideas
If you have a venmo or other money-transfer method, consider cash.
While a thoughtful gift is nice, cash is flexible. Enough small gifts, and one can flee home…