I’d love to have a custom cursor while prototyping.
Maybe whenever a user wants to explore various hover states, they could have the cursor change. That way when things are clickable, etc we could explore a more realistic interaction within a custom website UI.
Taking it a step further, it’d be cool to have the ability to see the cursor change in real time whenever prototyping. Right now the burden is on the interaction/animation to tell if something is working. Even just having the arrow / finger setup would be more indicative than the touch ball thingy.