David Bowie used a stylophone on "Space Oddity" to good effect.
I have MC'd a couple of Rolf Harris's festival spots here in the south and I can tell you he is a total gentleman - As long as there are people wanting things signed he'll stay and chat (sometimes until after midnight with his showbiz pals keeping the punters entertained while they wait - There always seems to be a forest of 'old pals' come along to his gigs.
I've also watched him with kiddies and every child gets his undivided attention for as long as the chat takes - believe me when I say that there could be a hundred people in the room but for that child there is only him/her and Rolf
My daughter interviewed him for Folk On Tap magazine when she was 12 and he treated her as if she was a fully fledged journalist and gave her a fabulous interview and thanked HER for her time.
I can honestly say that with Mr H 'what you see (on the telly) is what you get (live)' - A REAL hero