Here are my favorite examples from the 2005 Bulwer-Lytton bad fiction contest:
"The dragon cast his wet, rheumy eyes, heavy-lidded with misery, over his kingdom-a malodorous, rot-ridden swamp, with moss cloaking brooding, gloomy cypresses, tree trunks like decayed teeth rising from stagnant ponds, creatures with mildewed fur and scales whom the meanest roadside zoo would have rejected--and hoped the antidepressants would kick in soon."
"She walked toward him, her dress billowing in the wind -- not a calm and predictable billows like the sea, but more like the billowing of a mildewed shower curtain in a cheap motel where one has to dance around to avoid touching it while trying to rinse off soap."
"After she realized the man she had fallen in love with was her long lost twin brother and they must break up immediately, they shared one last kiss that left a bitter yet sweet taste in her mouth--kind of like throwing up after eating a junior mint."