The original paperboard fish chevrons don't work well with 3D Catan tiles, so I whipped up this amalgamation of mathgrrl's Catan numbers (http://www.thingiverse.com/thing:239439) and cerberus333's "Fish for a desk" (http://www.thingiverse.com/thing:229514).
Two of each numbered fish are needed to replace a single paperboard chevron.
The author marked this model as their own original creation. Imported from Thingiverse.