Here is where I post the collection of my painted rocks, below is a twitter link to my first 2 rocks that I have made

Pickle Rick rock and Uno Reverse rock

Edit 1, 6/12/2020:
Last week I made a Yoshi egg rock and a Doom rock, I forgot to post it until now

Edit 2, 6/12/2020:
Found a Flat-ish rock, made a Scrabble rock

Edit 3, 5/15/2021
Created a rock with the Halo logo on it