Let's see your signed knives by maker.

[SW-EDC]

Here is mine, signed by Doris Yazzie (DY) Navajo Nation.
It's spiderweb turquoise, onyx, red coral, and wood inlay separated by silver inserts.

 

[savage99]

How about a beretta signed by buck 😉

 

[Officer's Match]

 

[BluegrassBrian]

Custom Cheburkov knives get Alexander Cheburkov's autograph on the blade..
Hey look..that's Al in my avatar!

 

[Quiet]

I'll have to try to snap a pic of it (I'm going out of town right after work), but I have a Spyderco Streat Beat fixed blade, whose box is signed by Sal Glesser.