This is a bit late, sorry. I spent today (a) being less than healthy, but felt better after a long nap, (b) cleaning, and (c) making ravioli from scratch. Thus the lateness.
Good thing there isn’t too much to be said about water marbles. I generally prefer water marbles to be random and irregular. Annoyingly, the dark blue always made problems and glooped up.
I rarely do these because even with the taping the clean-up is a pain in the butt.