There's something about a square plastic plate that gives off an air of sophistication. Perhaps it's the clean lines and lack of clutter. Or maybe it's the fact that a square shape just feels more modern than a traditional round plate. Or possibly because they offer a more modern aesthetic than round plates. Whatever the reason, it's clear that plastic square plates will be here to stay. They show up on the tables at home entertainment and weddings, becoming increasingly popular among all types of parties.