Place 5 animal crackers in a blender. Cover and pulse until coarsely chopped. Add ice cream, frosting, 2 tablespoons cookie dough, and 1 tablespoon jimmies. Cover and blend for 1 to 2 minutes or until smooth.

Divide ice cream mixture between 2 (12-oz.) glasses. For garnish, roll additional cookie dough into small balls. Garnish shake with cookie dough balls, additional animal crackers, and jimmies, if desired.