There are items that happen to be made of glass, that i have not seen people put up yet. So here it is:

:Route 113:
Blue Flute - Wakes Sleeping Pokemon
Yellow Flute - Stops Confusion
Red Flute - Stops Infatuation (falling in love)
White Flute - Lures Wild Pokemon (Helps to find rare pokemon like Absol, Wailord, etc)
Black Flute - Repels Pokemon (Doesn't always work but its there)
Pretty Desk - A Glass Desk for your Secret Base
Pretty Chair - A Glass Chair for your Secret Base

(Before voting be sure to double check the list of Glass items the Glass Maker Has. The list is longer than you think.)

:Lilycove City:
Glass Ornament - A Glass replica of the ancient bird pokemon statue at the museum. Can only be obtained by filling second floor of Art Museum with paintings from the contests you won.