building an Eve costume from Disney/Pixar's Wall-E

Step 5 Cut the face opening in the head

If you got the right kind of trash can, although you will need to do is cut one side of the swingy opening off and secure the remaining part to the rest of the can.

Make sure you don't slice through where the swinger attaches to the rest of the can.

I attached it to the rest of the top with a very generous helping of hot glue.