ok don't laugh but i've always been on the lookout for some nice cloud templates that I can print and cut myself for a dog layout about taking my precious babies to the dog park. I've tried making free style clouds without success.
How to paint clouds on Hannah's ceiling: Mural tutorial: How to paint realistic (not cartoon) clouds on the ceiling. Demo includes paint colors and technique. This would be great not only for kid's rooms but also for formal spaces.