Well of course if you've found the right one, no other will do and I don't think it matters if it's for a character or not!

I've not done the ring thing, but I did go to a car dealership to look over a car in person, that I had no intention of buying, because I wanted to see if it fit a certain character (it did). If I'd been able to take it for a test drive, I would have done. Then there's the hours I've spent looking for clothes and other stuff too and me looking up certain buildings for sale in Cardiff that had nothing to do with anyone else's reason for being there.