I've been seeing these zipper headbands around for $25 plus so I thought I would try and make one myself. I was pleased with how it turned out, although I would make one or two changes which I'll tell you below. I don't want to waste any of your time so lets get straight to the tutorial.
Buy a zipper in the size that you want. I wanted to have as little elastic show as possible so I went with an 18 inch zipper. There are many different sizes to choose from, you can do what I did and hold it up to your head in the store. You also need to buy elastic. This is 1 inch elastic and it was .89 a yard, super cheap. The amount of elastic will depend on how big the head is of the person you are making the headband for.
Sew the elastic to the zipper. I used a zipper foot so that I could get as close to the zipper as possible. Go back and forth a couple times so that you are sure it isn't going anywhere.
There is no step three, you are already done. Super fast and easy. The change I would make is use a longer piece of elastic to close up the gap at the beginning of the zipper. It really isn't that big of a deal because nobody will see it, I just know there is a gap and I don't really like that.
You can wear this headband zipped up completely, partially zipped, or unzipped to have two small headbands in one. Just a suggestion, don't try and zip or unzip with it on your head, you WILL get your hair stuck no matter what you think. Just a suggestion, you can try that at your own risk. = )
I made this for a total of about $3.50, that is a savings of about $21.50 from buying one. Can't beat a savings like that!
See above, that is our super duper awesome sister Samantha looking so cute in this headband. Thanks for being my model Sam!