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Everything related to a wedding is so elegant, so refined, so proper that well, even the mention of a toilet sounds unfitting. But having a celebration alfresco when there are no bathrooms nearby means you need rental options pronto. That's where we come in: We've done all the research for you with the help of wedding planner extraordinaire Lyndsey Hamilton, creative director of Lyndsey Hamilton Events.

Lyndsey Hamilton is the creative director at Lindsey Hamilton Events, where her clients include notable society families and business and finance leaders throughout the world.

From porcelain thrones (Kimye did have a golden toilet tower!) to porta-johns, here's what you need to know.

You don't want the loo in full view of guests or near where they are eating, so careful placement is a must, says Hamilton. If there aren't any areas to tuck them away completely, hide units behind a barn, outbuilding, or even nestled in a grove of trees. "Make sure the bathrooms aren't far from the tent and the path is covered in case it rains," she says. You'll also need to figure out where the water and power sources are located ahead of time.

Regardless of whether you have your basic porta or a luxury loo, there are little things you can do to dress it up that will go a long way. Cover the front and sides of the trailer with tall trees or shrubs to camouflage the exterior, says Hamilton. Add details such as flowers, toiletry baskets, pretty soaps, and candles to the interiors, and consider hiring a restroom attendant to make things a bit more civilized, she says.

In the realm of wedding-worthy restroom rentals, there are your individual porta-cabins that have flush units (non-flush options are a no-no for obvious reasons!) and sinks—these typically go for about $300 each. Then there's the restroom trailer, which can be like the royal flush of the mobile bathroom world. They are essentially regular bathrooms with running water, ample lighting, climate control, flushing toilets, and space, says Hamilton. They range in size from 10 to 26 feet and cost anywhere from $2,500 to over $15,000, says Hamilton. "Although restrooms are not an item people want to spend a lot on, they really do make a huge difference," she says.

The last thing you'd ever want is a long line for the restroom, or (gasp!) your male guests resorting to a nearby bush, so have enough bathrooms to cover your guests. "We generally do three to four stalls for women and three stalls for men for a 150-to-175-person wedding," for example. That works out to be roughly one bathroom per 25 guests.

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