Bobbin & Holder

My wife loves her Craft Destiny Yarn Ball Winder, but she recently got into doily crocheting and really didn't have a good way to keep her small balls of yarn from turning into unusable big balls or a spaghetti mess.

So, I jumped onto FreeCad and designed these. They are still a work in progress keep in mind.

The tall ones are for full or nearly full skeins. The smaller ones are for half or less skeins.

Tips Appreciated:
Banano: ban_3dfmmfs8mdabm19ugueh7anmxwy6g8w69rqtc1dtzi1aotpdzi6jg7pc4bqz
Nano: nano_1bibi54oojjbbyp7qh69popsa7x6kkiu9ddiiwkeye4gak393b1musmocwyd