The original Pictish stone carving on which this boar tattoo is based is housed in the antiquities museum in Edinburgh, Scotland. Rendering it with dots, as shown, brings out the sense of it having been pecked into the stone.
Based on an equal-armed cross found on a grave in the tiny Irish West Cork town of Skibbereen, this bold pattern is reproducible at many sizes. The negative-space background area can be black or done in any color, bringing the symmetrical knot work to the forefront.