A powder room—aka half bath or guest bath—isn’t just a great luxury (who couldn’t use an extra toilet from time to time?). Due to its small size, it’s a perfect room within a home in which to unleash a little interior design creativity. Here, six half baths that range from sophisticated to industrial to just plain trendy:

At 1474 Third Avenue, a four bedroom, 4.5-bath condo (priced at $5.795 million) includes this powder room, located steps from the entrance to the apartment and featuring Calacatta marble and linen walls, plus polished nickel finishes.

A mirrored wall appears to double the size of a powder room off the kitchen of a four level, four bedroom, 4.5-bath penthouse condop at 240 Centre Street (on the market for $27.9 million).

A single family townhouse designed by decorator Miles Redd at 258 11th Street in Park Slope (on the market for $3.495 million) has a garden floor powder room featuring walls covered in real peacock feathers.

In this three bedroom, 2.5-bath penthouse at 534 Hudson Street (for rent at $30,000/month), a powder room boasts a frosted glass divider separating the toilet from the industrial-style vanity.

Finally, this newly renovated powder room—within a one bedroom, 1.5-bath condo at 15 Union Square West (priced at $3.395 million)—has a custom vanity-mirror with honed Carrera marble, designed by architect Amanda Sullivan, and subtly shimmery wall paper to reflect light.