It's hard not to think of yourself as a fashion designer when you stop in at M&J Trimming. The beauty at this "button store" is that the creative staffers can help you invent whatever look you wish to dream up. They have a vast selection of buttons, lace, rhinestones, and about any embellishment you can think of. Whether you need to spruce up a jacket, fix a shirt, or put some love onto your hat, you can acquire all the tools you'll need to put it together. One step into this store, and you'll be inspired to get carried away. 1008 Sixth Avenue, 212-391-6200, mjtrim.com (10018)