PlanckTHK
https://booth.pximg.net/e0bc7fee-a559-4263-8721-0f3742caaf87/i/1073162/275e8f33-fee9-4d34-96d8-ac76b650e633_base_resized.jpg
Planck Through Hole Kit
https://github.com/olkb/planck_thk
https://booth.pm/ja/items/1073162