
The classic Peter Pan Collar
http://www.lululoves.co.uk/item/crochet-collar-pattern.html
This was the first crochet collar pattern I made and is still one of my favorites. I crocheted this from a free pattern found at the link above. I used Aunt Lydia's mercerized cotton with a 4 mm hook. The Peter Pan Collar is my favorite embellishment for a plain tshirt and jeans.

My version was made using Aunt Lydia's mercerized cotton in the Teal colorway with a 2.75 mm hook. The foundation chain length suggested by the designer was too long for my purposes, so I had to reduce stitches, but the pattern will still work as long as the inicial chain is a multiple of 3.
This collar is a little more elaborate than the previous one.

This is also a purchased pattern. The original pattern is called Nefertiti's Lace Collar by Viktoriya Isakina. It can also be found on the designer's Ravelry page. ( www.ravelry.com/patterns/library/nefertitis-lace-collar )

The pattern is called the Summer Ponchette and was originally designed by Gena Hester from Yarn Designers Boutique. ( www.ravelry.com/patterns/library/summer-ponchette ) I made it using Lionbrands Cotton-Ease yarn which is a thinner yarn than used by the designer. Because I used a thinner yarn, I also used a smaller hook; 5.5 mm hook instead of the suggested 6.5.
There are many patterns on the Internet for crocheting detachable collars. However, I searched long and hard for a simple shirt collar, you know the one with the pointy edges. but I just couldn't find one. So, I decided to try and write a pattern of my own.. After a couple of failed attempts, I got what I thought served my purpose. I even added some beads to my final piece. If you click on the image below, you can access the page that contains this pattern for free!