One of my favorite ways to burn time is folding complex origami accordion patterns. I just uploaded an album of these paper accordions, and I've listed the different types of patterns below. I might make a tutorial on how to fold one if somebody asks nicely.
Expanded diagonal compound v-shaped
This pattern is a more complex version of the classic v-shaped accordion pattern.
This is probably my favorite pattern of all time; it's an incredibly time-consuming way to turn a piece of paper into a mesmerizing paper toy. It requires folding and pleating in three dimensions simultaneously.
Collapsed triangle base
This is just a weird test pattern I folded with some spare time and a magazine renewal card. It's unique because it doesn't like to flex.
Collapsed diagonal compound v-shaped
This one is more complex than the collapsed diagonal compound v-shaped pattern, because it requires an extra pleat for each row.
Collapsed compound v-shaped
This one is the same pattern as the collapsed diagonal compound v-shaped accordion, but it originates from the middle of a side of the paper, instead of the corner. It looks like a snow monster.
That's all the accordion patterns I have folded recently. I know this has nothing to do with technology, but I still don't have the time to work on any serious development projects. With luck, I'll be rejoining the coding community soon.
Update: I just opened an Etsy shop to sell some of the textures you see above. If you want one, visit my shop and buy one before they sell out! Yeah, right...