The Collector's Hat Sewing Pattern and Tutorial
Image of the pattern I made with measurements:
As a little heads up to people with big/small heads and/or more voluminous hair, this was based on measuring my own head which has a circumference of 22 inches which is dead on the average and my hair is completely straight and relatively flat. You may need to do some adjustments of these measurements because the final fit is very fitted, in that it can be easily put on and taken off but does not fall off on it's own under typical circumstances.*
This pattern is meant for knit or other stretch fabrics, I did not make a completed version with woven or stiffer fabrics, so quality may vary depending on the material you select. I recommend knits.
If you are new to sewing or this is one of your first projects you are doing without a physical pattern, I recommend following the given measurements and drawing it out on some type of paper first and then using that as reference for yourself. I am an outlier when it comes to not making patterns and drawing the shape of what I want out onto the fabric directly, and you shouldn't follow my horrible example. This hat is actually the first time I've even made a muslin prototype.
When you are going to cut out the pieces you need to make sure, like double and triple check, that if you were to lay them pattern/top side up, that they would mirror each other like in the above picture. If you don't then you'll have two lefts or two rights.
The first actual step for sewing is taking the straight lines from the V shaped notch in the top of the hat, and lining them up by folding the piece in half so the patterned/top of the fabric is on the inside of the fold, like in the picture above. You do this on one half at a time. When they are lined up sew them with a straight line stitch a 1/4 inch (1/2 cm) in from the cut, starting at the fold towards the top of the hat.
After that you want to lay them pattern to pattern, and pin them into place to make sure it's aligned properly on both sides. To reduce bulk I recommend making the excess fabric from the darts (the V cut-out) point in opposite directions, as shown in the above picture.
After you've sewn the sides together there is an optional step that I did to make sure the seam lies flat on the top of your head. I opted to sew both sides down onto the blue half of my hat because my machine was being picky and skipping stitches on they grey fabric if there was no blue fabric as well (I got around this on the hem by inserting thin pieces from the blue's selvage into the seam). But if your machine isn't being picky or you are hand sewing this, then you could split the excess and sew them down onto their corresponding half. Example above, as usual.
Optional step that MUST go here. If you are attaching a ribbon, or lace for a trim to edge you have to do it now. I do not recommend this step to beginners. I recommend sewing it down while rolling the edge to create the hem, and then securing the other side of the ribbon/lace further into the piece because this guarantees a better placement and straighter lines. If you are doing this step along solely the bottom or front edges then let the lace/ribbon stick out further than the edge of the fabric, so you can fold it under the hem.
The final required step is to hem it, just fold what remains of the raw edge and sew it down.
Final optional step is for adding little trinkets. I added trinkets to the front corners and the floppy bit in the back like the Archivists are depicted as having. I used embroidery thread and slid the needle to go between the seams and tied it off on the inside. If your trinkets are not detachable, like the little stars on my hat, you need to thread the needle through the ring before putting it back into the hat and tying off the thread. Thinner cord or thin ribbon could work as well.
*I actually just did some tests and I have to be tilted further back than lying flat on my back for it to fall off. I was able to bend over and look through my knees and it didn't fall off. I tested it's wind resistance against my two strongest fans and neither could knock it off my head even when I shook it. So I think it will stay in place just shy of someone pointing a leaf blower at you.
Enjoy these pictures of the finished product, including a glamor shot of me wearing it backwards while I fumble with my phone for a picture.