How to attach part to servo

I am trying to get the XRP Hockey game found here (XRP Hockey by John1102 | Download free STL model | Printables.com) to work. I printed the supplies and I can’t figure out how to connect the stick to the servo. I attached pictures of the servo, the horn and the stick. Does anybody know how I can get the stick to attach to the servo?

My goal is a game the students can play early on in the semester without having to learn CAD first and design their own arm. If there is a better option for this than the hockey game that would be helpful to know as well.



It looks like for their design they do not make use of the servo horn, but intended for the hockey stick to be directly attached to the servo and then use the longer servo screw to attach it.

Thanks, that worked.