Glass orbs to roll or throw. Don't lose them, or insane you go.

I'm a common item in your house, or even a sports bar, Sit down and watch me for hours, your attention won't go far, Too much of me is bad for your eyes, parents have concurred, I'm not the abbreviation, but the full word

Long before I became synonymous with an elf, I was a supporter of seasonings and recipes on index cards

You can swing from me but you mum won't like that!

Keys, black, ivory, Fingers wake a sleeping song, Music fills the room.