Rhode Islanders have long been able to choose Mr. Potato Head for their specialty license platesFILE - In this Oct. 12, 2000 file photo, a Mr. Potato Head statue stands outside the Hasbro, Inc. headquarters in Pawtucket, R.I. (AP Photo/Stew Milne, File)PROVIDENCE, R.I. -- It's been no small potatoes that Rhode Islanders have been able to choose the image of Mr. Potato Head as a specialty license plate for decades. Yet with Hasbro's decision to move its headquarters from the smallest state in the U.S. to Bos ...