Or just uniformly old?
Does it matter? Not much; never mind. As it happens, I was a little hazy to begin with, so there’s not much worry about the old marbles disappearing. Who really needs marbles anyway, except for a game-playing champ or, say, Michelangelo. For me, the touch of lunacy just adds a little color and a lively element of surprise to my everyday existence.
Scaredy Coot
My fears are principally these:
Of sharks, the dark; of killer bees;
Of speeding cars and drunken louts
That race them through the roundabouts;
Bloodsucking leeches; of the kind
Of beasts that populate my mind
In doctors’ offices; of tests
That only earn me second-bests;
And most of all, I fall in tears
Lest someone should unmask my fears!
Art-Colored Glasses 
Uniformly is better than helter skelter or intermittent or never at all, I suppose.
Agree, totally, on all your fears. Promise to keep them a secret, as long as you reciprocate. We can’t have our weaknesses laid out for all to watch them drying in the sun, now can we? Like very much your style of rhyme beat out in rhythm-time…
I think I had a Dr. Seuss moment or two while writing this one, no?
Much truth in Dr. Seuss, Kathryn! (I know all about masking fears)
I suspect most of us Creative Persons are accustomed to using our invention, much of the time, to cover many insecurities and worries!