A nation-wide trend, the "cash mob," will be coming to the Old Company Store in Wareham on Saturday, August 11 from 11 a.m. to 4 p.m.

A cash mob is a large group of people that descends en masse at a small business to shop and support the local economy.

"We really want to give the Old Company Store a boost … We need to support local people," said Leanne Schiller, the president of the Middleboro-based Grassroots Marketing which is coordinating the event. "We want to be trendsetters too," she added.

Customers will be encouraged to pay in cash like the old days before credit cards ruled and cash was king. Anyone who makes a cash purchase will be entered into a raffle for one of three $25 gift certificates to the Little Red Smoke House in Carver.

But cash is not the only thing from the past at Saturday's event.

An antique car show and the 50's cover band Daddy-O will also be on hand to take customers back to the days of sock hops, drive-ins, and roller skating waitresses.

There will also be a vintage soda fountain, a selection of retro penny candy, the old-fashioned pickle barrel, and swan boats donated by A.D. Makepeace in the pond.

The Onset Youth Center will also have balloon animals and raffles to benefit its program.

Radio Station FUN 107 will be broadcasting the festivities live with DJ Michael Rock. Attendees are encourage to "flash their cash" as FUN 107 makes a video of the event that they it will display on its website and Facebook page.