Tinkercad has this nice feature where you can see an (interactive) animation of your design. But you can't export this animation.
Quite often I'd like to show someone my design, but unless I'm on my computer, I can only send screenshots - this animation, even non-interactive, as a GIF or so, would be perfect.
I don't want to set my design public just to show it to a few (selected) persons. (Also, even today not all computers are strong enough to immediately show the animation or load the object.)