These signs are for the TM2 Island titlepack. Using item measurements from Arkady, I created these in meshmodeler.
I referenced signs from the original TMX Signpack and by opening them in an image editor I converted pixel measurements into meshmodeler dimensions so these should be quite close to the originals.
Thanks to Plantathon for the idea to separate the arrow overlay from the background color, you can mix and match foreground arrows with background colors to fit your own taste.