Kristin Mansky of Modish & Main purchased these boxes from an office supply store, but you could easily replicate the same look with leftover jewelry boxes and decorative contact or scrapbooking paper.
HOUSE BEDS - Mommo Design This can also be made out of PVC pipes, and elbows.
Sweet Cottage Flower Garden Little Girls Room Idea. It reminds me of the "Secret Garden" book I read when I was little ;
Ideas for Basement Windows