I like being able to stick walls anywhere along the edges when building dungeons, but I found that the available bases didn't work quite the way I wanted.

The first issue I ran into was my walls wound up tilting backwards (away from the tiles) because the base was too narrow and the wall hit the adjacent floor piece so I widened it to be just a smidge wider than the widest part of the wall's bottom section.

I wanted the walls to be reversible, so I widened the channel for the magnet to let it roll to whichever side its attaching to. Makes for a slightly better "stick" than just centering it in the base.

I also wanted the OpenLOCK connector, but my FDM printer isn't good at printing overhangs, so I used the "topless" version. Also by widening the base, the connector no longer "snapped" into place, so I added little catches at the center of the bump to let the connector work. I suppose that means they're not really OpenLOCK, but they should remain 100% compatible.