Here's a small desk that goes with the table from above. To make the legs adjustable, I cut mortises in the ends of each leg and I simply press fit different size blocks in them to account for the floor (in a 125 year old house) being out of level. The wood is the same brown oak, but the finish is a soap finish so it appears a bit lighter. The top is a scrap of solid surface, and the corner joints were made how they were to provide corner support.
I also wanted to say that I set every one of those ~3000 tiles (a skill I learned from @swt61).