parfum1 lists 13 Dolce&Gabbana fragrances as decants in 3, 10 and 30 ml. Devotion is a good first choice, and the letter fragrances are here too, with K by Dolce & Gabbana Parfum, Q by Dolce & Gabbana Parfum and Q Eau de Parfum Intense all on the list. Try a 3 ml, then step up to 10 or 30 ml.