Taylor from TaylorMade designed these from plastic cups, fabric scraps, Mode Podge and a strand of lights. I can see them as an addition to a nursery in lieu of a night light or anywhere you can use some soft light!
You could use larger or smaller cups to change it up and use paper instead of fabric. These would also be fun for the holidays, perhaps using orange fabric or paper and drawing pumpkin faces on them or using Christmas themed fabric. The options are limitless.