Epoxy
WOW, this was way more fun than I expected. I really really enjoyed doing it and can’t wait to do something like this again.
IF you haven’t played around with some epoxy, definitely try it. I went with Stone Coat Countertops off of Amazon, I used a black undercoat then the next morning applied my colored black epoxy base coat then lightly threw in white and a tiny bit of blue and wearing rubber gloves I just mixed it in. The next morning I added a clear epoxy overcoat so really expect 3 days to do this. They do have a Top coat you can use but I went with a heavier clear coat.
I highly suggest you check out Stone Coat on YouTube and practice before you do a bigger job.
Check out the link to see some pro video from Stone Coat themselves. https://youtu.be/ucdRTmpP4J4?si=fI5Vo1q8dXZnSxEP