Does anyone know where to get a slipcover for dutailier cushions? (Do they make those?) We got a floor model dutailier and the cushions are dirty. I called Dutailier and was told dry-cleaning is not recommended, and the other alternative is cleaning done by upholstery cleaners (steam-cleaning?) If anyone has any success with either buying slipovers or sewing them from a store-bought pattern, please let me know where I can find them. Thanks!