A trinket, knick-knack, or bauble, typically one that is small and ornamental. I hope Aunt Louise doesn't give me another gewgaw for my birthday—I already have a shelf full of them!
geegawand gewgaw and googaw (ˈgigɔ and ˈgugɔ)
n. a gadget; a bauble. What do you do with these gewgaws? Hang them on a tree?