A couple things I saw and thought "Mastodon will love this":
- Alias, a 3D-printed "parasite" that sits on top of your Amazon Echo or Google Home, feeding white noise into its mic until you say the wake word: http://bjoernkarmann.dk/project_alias
- The adminbook, a wonderfully ugly design for the ideal sysadmin notebook: https://m.habr.com/en/post/437912/
π