Put together four words that strike you as sharing an element. Think of element in the earth-air-fire-water way, but be loose and intuitive about it.
Visualize a scene from your four words by assigning each one a category from the following list (select four you like or add some more of your choosing): objects, setting, speculations, gestures, appearances, interfaces, transitions.
Describe the scene in four “There is ___ ” statements of fact, one for each word-category pair, taking the first image that comes to mind. (For example, if one of my words is appetite and I’ve assigned it to the category, setting, then I might put appetite-setting together like this: There is a wall running the length of the room filled with delicacies in jars.)
Use your four-sentence scene description as an assignment. Write the scene you have assigned yourself, populating the scene as needed to fulfill your four statements of fact.