This was my (well my boyfriend's) version of the magnetic makeup board. I didn't have a frame, metal sheets, a way to cut them or anything else. My smart boyfriend suggested using these metal letters. Once I discovered they were half price at Hobby Lobby
Buy a regular white tshirt, draw a diamond in the back, center with a pencil. then just start cutting strips down to the outline of the diamond. cut out a V from the tip of the diamond. then cut off the bottom of the tshirt and cut the neckline bigger.