Plug for Pentel Waterbrush

thingiverse

I prefer storing my mini Pentel Waterbrush in a compact watercolor kit I own from another company. However, the brush won't fit unless I keep it detached. Previously, I had been using the original waterbrush body that came with the kit since it matched the Pentel top parts, and the plug that came with the original kit, but the body was becoming extremely grimy, and now that I have a 3D printer I successfully printed a plug that fit the Pentel body instead and swapped it out! It is designed so that it's a snug fit, so I anticipate it to take some force to push in and pull out.