Clamp for wind spinner models

Clamp for windmill models created by @Printer for the contest of Garden Wind Spinners and for those who have a baolcony ledge. 

It fix all the wind spiners models made by the above user such as:

https://www.printables.com/model/969753-windmill-100-printable-no-support-no-bearings-low

https://www.printables.com/model/969941-windwheel-100-printable-no-support-no-bearings-low

https://www.printables.com/model/972684-windmill-xl-cross-100-printable-no-support-no-bear

https://www.printables.com/model/970916-windmill-xl-100-printable-no-support-no-bearings-l

https://www.printables.com/model/972015-windmill-toroidal-100-printable-no-support-no-bear

Its a simple clamp for a simple problem for those who dont have a piece wood to drill to.