Welp, as someone else here pointed out, just print it, then: https://www.thingiverse.com/search?q=Sharrow https://www.thingiverse.com/search?q=Sharrow Which is

Welp, as someone else here pointed out, just print it, then: https://www.thingiverse.com/search?q=Sharrow https://www.thingiverse.com/search?q=Sharrow Which is what i'm going to try next year - for my smol electrical harbour pusher. If you have one of these fancy inconel printers that spacex uses, you could even print a steel version. And quite big ones, too.