This pdf plan set has all the info you need to build a Japanese-style keepsake box. It includes detailed measured drawings, printable templates, and a materials list. Don’t worry; if you don’t have access to reclaimed bamboo, as shown in the video, you can easily substitute your favorite type of wood to make a unique box.
You can watch the box being built on youtube.
Yes, this is the same box that was in the NetFlix series Cobra Kai Season 4 Episode 7