As of late Tuesday morning, items that did not make it into one of the 4,000 cans were on display at Montrose Beach, before park workers completed their sweep of the lakefront. A pair of boxer shorts sat on the asphalt path leading up to the beach’s entrance. A used diaper was wrapped up and left on the sand. Cans and bottles of Corona, Budweiser and Tecate covered the stone steps leading down to the beach.