Hextile, grass ruins

This is a remix, combining three elements...

ThinkerThing's Open Board Game. Grass Surface Brick - https://www.thingiverse.com/thing:739034

"Ancient Stone Ruins 28mm Terrain Piece" scaled quite a bit down
https://www.thingiverse.com/thing:3222474

and "Castle Ruins concept" at
https://www.thingiverse.com/thing:5175374

into what you see here.

Check out the single base that started this all, here: https://www.thingiverse.com/thing:6292937.

As mentioned elsewhere, you may choose to sand down your tiles to get them to fit inside the lip confines. They do make a satisfying POP/click sound when they do, and they won't go anywhere when snug in!