The phrase "a charming double" is correct and usable in written English.
It can be used to describe something that has a delightful or appealing duality, such as a character, a design, or a performance.
Example: "The film featured a charming double, showcasing the actor's versatility in portraying two distinct characters."
Alternatives: "an enchanting pair" or "a delightful duo".
For a last-minute rate of $106 ,single occupancy (the regular price is $119), I moved into a charming air-conditioned double with wood floors, ample bathroom, a desk and French doors looking onto a quiet street at the Hôtel du Palais Bourbon in the Seventh Arrondissement near the Musée d'Orsay.
STAYING THERE On a smart sidestreet in fashionable Prenzlauerberg, Ackselhaus (00 49 30 44 33 76 33; ackselhaus.de) is a charming old townhouse with doubles, including breakfast, from €150 (£118) per night.
Where to stay Underleigh House (01433 621372) is an award-winning, cycle-friendly B&B in a charming Victorian cottage offering doubles from £90.
Here that position is occupied by an auctioneer named Simon de Pury, the chairman of an auction house known for its contemporary-art sales, and a charming presence in a double-breasted suit who comports himself as if a very well-liked maître d'hôtel.
It is built around a charming inner courtyard, with a double gallery reached by going up the very grand staircase.
Apple kicked off its hardware event today with a charming little video that did double promo duty, both introducing the event in a lighthearted way and giving a quick curated tour of the company's new "spaceship" headquarters.
"The dripping, flaming Vallauris glazes, with a charming popular imagery, take on a double political meaning".
Chickadee Cottage Bed & Breakfast, 70 Averill Road, Pomfret, (860) 963-0587, fax (860) 963-0594, www.chickadeecottage.com, has a charming country cottage ($175) and one double room ($125) on a property adjacent to the Air Line Trail, one of the region's longest walking routes.
Among further images are a maze of playing cards, all hearts; a charming pavilion (part casino, part giant double bed), which projects into the sky from an emerald lawn; a circular topiary labyrinth; a Bugatti (the sexiest of motor vehicles); and the eeriest of graveyards, thick with tombstones in the shape of blacked-out windows.
That said, it might be just as much fun to fly down, rent a room at the Jekyll Island Club with two double beds and a charming big porch with two wicker armchairs ($159 during the week in the off-season), and watch fathers play croquet with their children on the front lawn.
