I remixed HandsOnKatie's smallest hook to carry small things like keychains and other stuff with small holes. This hook is 8mm wide (with 25mm wide multiconnect back). Additionally I removed the side overhangs to place hooks directly side by side. I prepared files with up to 5 grouped hooks for diverse usecases and placement requirements.

Requirements

• This hook is designed to work with Multiboard. Credit to Jonathan from Keep Making. 
• They slide on to Multiconnect. Use at least two Multiconnect per hook/group to make them stable. Credit to David D.