About 500 people got caught in an "egg-citing" time warp at Redhill on Sunday.
It was the town's 150th birthday celebration with a church service, games, 35 stalls and historical displays.
The turnout surprised organisers who had originally hoped for a crowd of about 200.
The event was funded by the Redhill Development Association and the Port Pirie Regional Council. Jill Wilson organised games including the egg-throwing where partners tossed a "live egg" over steadily increasing distances.
"If it breaks, you are out," said one of the event organisers, Bronwyn Mumford.
"In the tug-of-war, the girls beat the boys." She said old photographs had been displayed in the Institute and the football club. "The town's actual birthday was on Monday," she said.
"It is a small community - a shop and service station - but it is not going backwards."
She said River Terrace had been closed for the celebrations and 35 stalls were set up in the street. Some estimates of the crowd stretched to 800.
The state's rural newspaper, the Stock Journal, attended the event to photograph the activities. Mrs Mumford is involved with the Redhill Development Association and emphatically said the event was a success.