Ever since I saw jonrgrover's "Heavy Chain", I wondered what forms of Celtic knotwork and chainmail weave could be created on a small grid. This design contains all the ones I have found so far. Feel free to clone this or make suggestions!
All these designs are 1x1 or 2x2; I made larger swatches to show how they tessellate and can form even larger shapes.
If you clone this, I recommend opening another new FontStruction at the same time, then copy-pasting the knots you want from the cloned project over to the new one. This will help reduce the chance that your creation gets corrupted.
149 custom bricks for your perusal! Only custom bricks are in the palette, so you can clone this and easily start drawing right away.
I'll definitely be adding more with time. I love this sort of experimentation!
Shading chart for people willing to try out shading.
Numbers indicate brick number (may not be accurate, but who cares).
Identical bricks have been skipped...