I really liked RobjD3's key hook for Ducati, so I was inspired to create one for my Kawasaki as well. 

I couldn't really replicate his way of curving the main body, but it worked well for me. 

I used a M3.5x12 screw to attach it to the wall but some double sided tape would work as well. 

The cover fits pretty wall into the main body, but I added a drop of glue to fix it in place.