Hole-y moly, they like their donuts in Butler County, Ohio. Six years ago, the area launched a local donut trail, and this year, to mark National Donut Day today (June 4), the Butler County Visitors Bureau is unveiling “new and exciting additions” to its beloved local attraction, including a 13th destination on the trail, dedicated donut concierge, free T-shirts, and donut shoe giveaway.