Arby's Small Vanilla Shake Menus, Arby's menusDecember 25, 2015You know what you like and why you like it. Your horoscope reads "Today will be nice" every single day. This small vanilla shake is for you. Arby's Medium Vanilla Shake Menus, Arby's menusDecember 27, 2015Try the Medium Vanilla Shake or any of Arby's other delicious recipes at your neighborhood. Arby's Large Vanilla Shake Menus, Arby's menusDecember 31, 2015Try the Large Vanilla Shake or any of Arby's other delicious recipes at your neighborhood. Culver's Vanilla Shake Menus, Culver's menusDecember 16, 2016Nothing is as pleasing as a long, cold draw of Vanilla Shake handcrafted with Culver’s Fresh Frozen Custard.