Here's some colourful kid's room inspiration for you. I found it via ohdeedoh.com
The post title is called "Create a Faux Colourful Canopy on the Cheap" and that sounds (and looks) good to me! I'll have to file this one away for the future. I guess that means we either have to redo one of the kids rooms or have another baby! Hmmm.
You can read the full post and find out how to do it for yourself here.