Lightflare Shines is a shop located in Ponyville. It serves as Slashy's home and workplace, in which she makes dresses for customers and friends. Slashy does most of her designing in the main workroom on the ground floor of the building. The room is stocked with materials and supplies such as mirrors, dress form mannequins, and movable screens. In the upper floor is Slashy's bedroom.
Every customer can request a new dress. More or less, majority of ponies browse the clothes and accessories on display. Basically, if it's anything to do with fashion, Slashy can make that dream come true. Depending on how big the request is, she can complete a request in a few days. She often opens her shop when she is available.
Don't worry, she won't bite. It's fine with her for ponies to buy more than two. So it's up to their decision. And when their searching for clothes, she knows they'll have fun.