New Mariposa At Glassworks And Annual Shadyside Sidewalk Sale Continues! Check out the new arrivals from Mariposa, including lots of new styles and designs. Great gift ideas include serving trays & platters, picture frames, napkin boxes with weights, and statement trays and frames. Also, don't forget about the Annual Shadyside Sidewalk Sale, which continues until Sunday! Glassworks offers free gift wrapping!