I had created a three-card draw variation with drag-n-drop and scoring, but never posted it due to the fact that someone else was working on one at that time (but, I never did see an update on that persons scenario).

I like some of the effects you get when you drag the dot very slowly (in circles or waves). BTW, I viewed scenarios tagged with 'drag' and found this one (looking for drag-n-drop).

If you casually stare, or slowly gaze around, on the larger size mazes, you will get the (optical) illusion of blue-gray dots in the white-space between the paths.