Here is a sentence from one of my favorite books. The main character is meeting an older man for the first time and he had just had a stroke on his 83rd birthday.
"His left hand, defective . . . useless, fingers twisted and curled toward his palm, lay in his lap like some long-owned geegaw . . . worthless, but too familiar to throw away."
A bauble, something pretty or cute but pretty much serves no purpose other than to look good. Can also mean something useless in a derogatory term.
Examples: She had a pretty geegaw pinned to her blouse.
He had another useless geegaw in a coffee can.