Adjust your old denim shirt and refresh your look.
Use a ruler and a pencil to draw the shape you're going to cut out, going in with a freehand cut is risky because you want the cut to be straight. Make a cut right in the middle of the shape and very carefully scissor out the panel making sure you get all of the material from the side of the button strip so it goes straight up onto the collar. And that's pretty much it. Tidy up the sides so that it looks neat and professional and button it up! You can create a preppy look with coloured shorts or jeans or dress it up with a body-con skirt and heels. Have fun!
Ps. the collar acts as a necklace so no need for neck accessories, but make sure you button it right up otherwise you wont get the right effect.