Sure, here is a before and after image. I work in a paint store that has wallpaper sample books, which get thrown out after expiration. I found one with a tile pattern small enough for minis, so I cut all the pages out and used Scotch 77 adhesive to bond the material to ordinary linoleum chunks. The assorted colors would've been fine for town building floors, but I wanted a more uniform dungeon level. I used a dark glaze to even out the colors, with touches of flat black spray in the corners. Leaving the center lighter makes the rooms look "lit by torchlight". I'm going to use other textured wallpaper to make rough rock floors, slime traps, etc.
I'm only using magnetic tape because I found a large roll of it for 5 bucks. I also have heavier scrap tiles painted for a sci-fi board. This is a bit more expensive than printed paper floors, but way cheaper than anything cast/molded.