Best Family Halloween Costume: Seriously, THE best! Mr. & Mrs. Grouch, Cookie Monster and Cookie! Need I say more?! Read More MamihoodJacqueline FriasSeptember 11, 2018diy cookie costume, diy baby cookie costume, diy baby halloween costume, diy baby cookie halloween costume, Cookie Monster and cookie halloween costumes, Mr. and Mrs. Grouch, Sesame Street family halloween costumes, family halloween costumes, best family halloween costume, Family Halloween costume ideas, diy halloween costumes, halloween costumes, Cookie Monster halloween costume, grouch halloween costume