LOL I also made one last year from EnKore's inspiration (which I found out was also Sephora but I've never been so I didn't know)

Here's mine:


LOL and I did the marbles on the bottom too, just mine were ruby red. I had bought another bag of baby blue ones, will have to see when I get more brushes how I'm going to break it up and if I want the same colours or different.