Ltd Series restroom trailers from Ameri-Can offer a selection of sizes and number of stations. The luxury units, available in Royale and Oasis models, have cathedral-style floorplans, spacious and comfortable to serve more users. Each Ltd model offers a choice of designer-created interiors and a range of exterior color choices. Standard features include a playlist sound system that can be easily configured to provide music specifically selected for each venue, and can include recorded DJ-style messages or discreet advertisements. 574/892-5151; www.ameri-can.com.