Contrast between an object and its shadow can make an interesting photo.
Smooth, rough, dirty, or wrinkled. Make a photo of hands that tell a story.
Take a picture of fire or something that represents fire.
Giraffes are brilliant. Show us what it would be like if they lived in human society.
Make a landscape photo!
Take a photo of a food being served or eaten in an unconventional way.
Take a photo of advertising that has been painted onto a building. The older the better.