servo horn/ connector for 28BYJ-48 ?

hi i just started playing with motors and have some issues connecting something stable to the pin of my 28BYJ-48 motor )

I've tried some combinations (best one : 2 bars kept by bullons with the motor pin in the middle ) but its still little loose . any idea/ best practice / or servo horn i can purchase / create ?

this is the engine

https://goo.gl/images/HE57P6
https://goo.gl/images/G4cG7z

thanks,
Fabio

Do not double post. It wastes time.

right sorry i wasnt able to find this again and though i didnt publish it - can i delete it?