People who live in glass houses rarely have an outlet to throw stones, leading them to careers as Olympic shot putters and professional David and Goliath reenactors. Master rock tossing with today’s Groupon: for $35, you get two hours of bowling for up to four people (up to a $42 value), including shoes (a $12 value), plus a $16 restaurant voucher at Facenda-Whitaker Lanes in East Norriton (up to a $70 value).

For more than 50 years, Facenda-Whitaker Lanes has trained Pennsylvanian strike and spare forces with 50 lanes of premier rolling grounds. Up to four companions will take to the bowling center’s polished alleys for two hours of uninterrupted spherical dueling, facing off with a staggering mastery of focus, ball english, and pin targeting. Facenda-Whitaker Lanes keeps its doors open 24 hours a day to entertain sleepwalkers tired of boring strolls around the living room and outfits each lane with optional bumpers for bowlers of all ages.

The restaurant voucher obtains edibles from Steppy’s restaurant, which touts 30 televisions and lane-side wait-service to rouse hungry pros trying to coax overzealous marbles out of the ball return. Between rolls, players explore additional attractions such as the Game Galaxy arcade, the recently opened Bamboo Bar, and the weekend laser-light show, a beaming spectacle known to spark uncontrollable outbreaks of boogying.