Who needs Martha Stewart? In an era bursting with home-design magazines, catalogs, websites, and television shows, Americans have gotten quite cozy with their inner designer. But while adults may focus on the kitchen or bathroom, a growing number of teens and tweens (8- to 12-year-olds) are pushing to have their space -- the bedroom -- made over as well.

Marjorie Burke, 11, of Dedham convinced her parents to let her redesign her bedroom, seen here.