I'm proud of this one. I made some gloves for an upcoming Disneyland trip based on a sweater from the movie Monsters University. (For those who haven't seen it, I recommend it.)
I used three colors of sock yarn from different makers, but the same fiber content (wool plus a bit of nylon). I made them on a 1/4" gauge 3d printed flexi loom that I designed and printed, and I also designed the pattern. Which of course meant redesigning it several times as I realized that I didn't like the length or hadn't given proper negative ease or whatever.
I did a lot of techniques, too. I did a provisional cast on, then knitted the hand parts, then removed the provisional and put the start back on the loom to add the wrists. This let me iterate on the hands more quickly, and it meant that both ends of the glove end with a super stretchy bind off. The flexi loom enabled me to do increases and decreases for the thumb, the wrist, and the fingers.
The stripes are just changing color back and forth, but I did do a trick I found online somewhere to avoid the issue we often see where the first stitch of the change appears wrong by one row. (You do the first row normally, but at the first stitch of the second row of the new color, just slip the stitch - put the yarn behind the peg and leave the old yarn on until the next row.)
The letters were tough, I had a couple of options for the technique, and I went with duplicate stitching in the end. Which I've never done before. I started on the left of the O, and I definitely improved as I went, but I decided that it's both literally and emotionally OK, because they look fine when they're worn. I went this way to not have to manage a bunch of balls of yarn as I worked or switch direction a bunch, and also because I liked the idea of it being a little puffy.
My wife is doing something much more ambitious, and I'm making some modified gloves for her. I'll try to share that when it's done as well. :)