White clouds - This reminds me of the Peter Pan Ride at Disneyland :) Imagine having these hanging in your home high enough that people can walk beneath them, or maybe a few small ones just above a crib in place of a mobile. Not sure how one would make these though.
Cloud Lights: First, you need some cotton batting, a paper lantern, and three flameless candles, the type that Glade sells. Pull at the cotton batting until it looks fluffy, light, and cloud-like. Then, hot glue it to the outside of the paper lantern in various places. Make sure it's fluffed to your liking, then light the lights and stick them inside. Hang the lantern wherever you'd like.