"X mounts" for mounting electric motors on foam park flyers

[Cloudcruiser]

I've seen nice "X mounts" for mounting electric motors on foam park flyers and am curious were they're available. Typically they are made of aluminum, fiberglass or CF.

 

[wjp01]

Two sources for some specific aluminum mounts are:
http://smallpartscnc.com/index.php?route=product/category&path=20
http://www.customrcparts.com/index.php?main_page=index&cPath=1