Dunkin' Donuts may be taking the Munchkin' donut hole idea to bagels. The Canton, Mass., company has filed to trademark "Bagel Bunchkin." So much for my Pekinese's nickname. The Canton-based restaurant chain, the nation’s largest seller of bagels among quick service restaurants, Dunkin' won’t say when it will introduce the new product or provide details of exactly what a Bagel Bunchkin might entail. Einstein Noah Restaurant Group of Lakewood, Colo., also sells bagel holes, which it calls Bagel Poppers, which sounds slightly illicit.