Here`s a pic of my custom made one I cut out of thin stainless you can see on the red the 2 location dimples for mounting the factory holder.I used only 2 screws and mounted it on the black bar and folded the bottom up at a 90 to brace it underneath and added a little 2 sided tape to keep it from moving at high speeds.

The swirley looking pattern on the frame is just the refection from the lawn it is buffed out like chrome.I also put a slight bend in the centre of the plate and frame to keep it from touching the red painted part.

 

if u know need a holder you can have mine i think they were ugly and a waste of time. u pay shipping its urs consider it from one friend to another.