Vertical and Stackable Spinner

This is a garden wind spinner I have been working with for a while. It comes in two variants, either 3 blades or 5. 
Print them as the models are prepared to adhere to the printing surface in this orientation, but afterwards you can flip them upside down if you want. Each spinner is prepared for two 608-bearings, but I have tested and used several 3D printed bearing replacements here on Printables that works just fine.

To stack the spinners you can go two ways; either you place them on a threaded 8mm rod with nuts and a 3d printed spacer between each to reduce friction, or you stack on a bamboo stick them with small 3d printed clips separating them. A spacer and clips in different dimensions are attached in the files.

Will fit a 250x250 mm print bed.