So, I've taken up the "hobby" of changing trash into cash! All I use are old pop bottles (or juice cartons), duct tape, and scissors. So, today I'm going to tell you how to do this, too!
Take your recyclable of choice and cut off the top so it is perfectly rectangular, square, or even cylindrical.
Start covering with duct tape of choice until fully covered, even the top where the hole is.
Cut a money-sized slit in the top, to make it a bank. You're done! The finished product should look like one of these: