Hide the plastic box!
Let's face it, thermostats are not the greatest looking decor items. Usually made of plastic, they are also usually located in prominent areas. Hide the unsightly box! Matching heat registers and cold air returns are available, as are a variety of patterns for the decorative door.
thermostat cover
    thermostat cover w/door open

view available door designs
    (in new window)

video: custom thermostat covers