In early October, more than 5,000 fans of the cult grill Big Green Egg — affectionately dubbed EGGheads — descended upon Coolray Field, in the Atlanta suburb of Lawrenceville, for EGGtoberfest.

Could an egg poacher really help? I was dubious, but these simple devices did make it easier to achieve a nicely poached egg time after time. They're a cup, pan or funnel that helps contain your ...