Pixelated PFP and User Signature Art.

[paulmaglev]

About a decade ago when I spent more time on this website, I noticed quite few forum signature widgets that users had on their posts and replies included modular pixelated Lego art of their train collections and profile pictures using pixelated minfigure art.  Were those part of some 3rd party application I am unaware of, and if so where would I find it?

[JopieK]

For the trains see this topic: 

 

[paulmaglev]

Thanks.