That's a great video wee willy.
I reckon manually marking a queen is one of those landmark events for beekeepers … in no particular order of merit (though this is often the order they happen in)

Your first honey
Your first swarm
Your first grafted queen
Your first queen picked up, marked and safely returned

I still remember the first one I marked like that … I was really chuffed. Of the next two, one flew off never to be seen again and the other was balled