I'm a fan of the popcorn prompt.
take 5 or 6 random words and create a poem from them. I've done several works this way before...it's a good way to stoke those creative fires when you're a wee bit stumped.
Prompt #91: write a poem (story, essay, or whatever suits your fancy, using the following words: Pragmatic. Flock. Doorway. Spice. Simple. Lonely.