the closest to whimsical, i guess, are some brass bells shaped like apples. i found 5 in a thrift store and hung 4 of them in the small fruit trees i planted. i'm hoping as the trees grow they end up high in the trees and hopefully still swing free enough to ocassionally ring.
well, thinking more on it, i guess also a brass parrot hanging over the deck, and various small hanging bird houses. i've only hung one, but i have maybe 3-4 more i'll hang eventually.
you know, thinking more on it, i guess i don't know where the lines fall bettween whimsical, decorative, tacky (like in the other thread) or what. i see things i might like and stick them around the yard.