There are a lot of production knives: cheap, affordable, expensive, differend brands, lots of styles, ficed, folding and so on…..here just a couple of examples.
Very controversial to start with a Chinese clone, the Sanrenmu 710. But this is a limited to 200 pieces collectorsbox to honour the 5 year milestone being available in Germany 
With the WE 601 it started!
As representative for CR Knives, the Umnumzaan. Actually I should replace this pic with a Sebenza pic but I like the Umnumzaan more. 
Applegate-Fairbarne designed Gerber Combat folder. Just because 
Real Steel Megalodon. Not so many were made. Besides a great user for me also collectable because of the story behind this design. 
Not custom but customised prototype of the Grailer by it’s designer Dirk de Wit