Glass provides a resting place for wine, eveningwear for Cinderellas, and a more dramatic exit from 44th-floor windows for Bruce Willises. Shatter artistic inhibitions with today’s Groupon to Preston Art Glass Studio. Choose between the following options:

• For $15, you get a 90-minute copper foil ornament class (a $30 value) on a Tuesday at 7 p.m. or a Saturday at 4 p.m.<p>
• For $35, you get $75 worth of new or antique art-glass windows.<p>

As experts in the translucent arts, the family behind Preston Art Glass Studio dedicate themselves to cutting and assembling future heirlooms and unveil their techniques through art-glass classes. During each 90-minute foil-ornament class, artisans guide approximately 10 students through the process of building and soldering their own holly-leaf sun catchers or glass ornaments from pre-cut pieces. For additional light-bending adornments or new techniques for befuddling cats, customers can explore the gallery and its incandescent collection of ornamental pieces ($110+), sandblasted glass pieces ($40+), and painted windows($40+).