While you are on the site, in your browser find and click "Add to Home Screen" A CGN beaver app icon will then be created to your phone that is directly link to the site.
Note: This feature may not be available in some browsers.
As a last resort, if as you say, you have a proper drawing of it, it's not like it's incredibly complicated. Any machine shop should be able to turn one out in - literally - a few minutes from round stock. Heat treatment if required, another day.