upcycled milk cartons (project for hubby!. how to make a book-inspired paper plate bat craft. this has definitely been a fun project! we have all sorts of ideas for the future: blue birds, penguins what else?! i\u0027d love to see yours, especially if . diy egg carton flowers (via wwwlovelywrencom). supplies: egg carton\u2013cardboard . my 4yearold decided to play drums on the finished product halloween crafts 12 year olds. this project was super easy and quick! materials egg carton .