I first saw this top on Gigi and loved the way it looked on her. I knew I already had a gray sweater so decided to make a separate Peter Pan collar to pop on and off when I felt like it.
Left: J. Crew Peter Pan Collar Tee inspiration (buy here)
Right: DIY Peter Pan Collar worn over a gray sweater
There are a quite a few tutorials out there with printable patterns for you to follow, so I'm not really going to go in depth here. I will admit that I was too lazy to hook up the printer to use one of those aforementioned tutorials, so I decided to wing it like I usually do.
The diagram doesn't show this well, but make sure you either sew a little overlap in the center front or don't cut through it completely. You don't want 2 separate flopping pieces of collar. Also, you can go ahead and cut through the center back. This is where you'll attach a snap / clasp / hook / button / whatever you prefer to allow you to get in and out of your collar.
If you use something that doesn't fray and has structure (i.e. felt, vinyl, leather, etc.), you're done! I used regular white cotton fabric so cut out 2 duplicate collar pieces, sewed the wrong sides together, flipped the right sides out, and sewed a snap at the back for a closure.
Now you can wear it atop whatever you want :)
How do you feel about Peter Pan collars this season?