Ultimaker 3 tool box
thingiverse
I made this toolbox specifically for my Ultimaker 3 accessories, and it fits almost perfectly on the print table. You might need to rotate it by 90 degrees in the Z-axis direction, though. This toolbox comes with features that allow you to hold the Printcore nozzle change tool securely, along with two spanners. Additionally, there's a facility for attaching a rubber band if needed.
Download Model from thingiverse
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