Not wanting the brain to atrophy over the holiday season. I thought to post a hatch pattern that I have called Trilobe-E. I expect others can make a hatch pattern faster with various tools, but I like to use Autocad and trigonometry (in a spread sheet). It was based on a unit sized hexagon.
As the grid is a hexagonal one instead of an orthogonal one, the brain was given good exercise.
I am posting the text of the file as well as the pattern file.
*Trilobe-E, trilobe pattern
307.589089469,3,3,12.1236363414,0.1320676359,0.15069,-19.521625573
322.410910531,3.0919,2.8806,9.6409374243,-0.2287478555,0.15069,-11.2071266916
337.589089469,3.2113,2.7887,9.6409374243,0.2287478555,0.15069,-11.2071266916
352.410910531,3.3506,2.7312,12.1236363414,-0.1320676359,0.15069,-19.521625573
7.589089469,3.5,2.7113,12.1236363414,0.132067636,0.15069,-19.521625573
22.410910531,3.6494,2.7312,9.6409374243,-0.2287478555,0.15069,-11.2071266916
37.589089469,3.7887,2.7887,9.6409374243,0.2287478555,0.15069,-11.2071266916
52.410910531,3.9081,2.8806,7.5486792315,0.132067636,0.15069,-19.521625573
112.410910531,4,3,12.1236363414,-0.132067636,0.15069,-19.521625573
97.589089469,3.9425,3.1393,-9.6409374243,-0.2287478555,0.15069,-11.2071266916
82.410910531,3.9226,3.2887,9.6409374243,-0.2287478555,0.15069,-11.2071266916
67.589089469,3.9426,3.438,12.1236363414,0.132067636,0.15069,-19.521625573
52.410910531,4,3.5774,7.5486792315,0.132067636,0.15069,-19.521625573
37.589089469,4.0919,3.6968,9.6409374243,0.2287478555,0.15069,-11.2071266916
22.410910531,4.2113,3.7887,9.6409374243,-0.2287478555,0.15069,-11.2071266916
7.589089459,4.3506,3.8461,12.1236363414,0.132067636,0.15069,-19.521625573
67.589089469,4.5,3.866,12.1236363414,0.132067636,0.15069,-19.52162557
82.410910531,4.5575,4.0053,9.6409374243,-0.2287478555,0.15069,-11.2071266916
97.58908946,4.5774,4.1547,9.6409374243,0.2287478555,0.15069,-11.2071266916
112.410910531,4.5574,4.3041,12.1236363414,-0.132067636,0.15069,-19.52162557
127.589089469,4.5,4.4434,7.5486792315,-0.132067636,0.15069,-19.52162557
142.410910531,4.4081,4.5628,9.6409374243,-0.2287478555,0.15069,-11.2071266916
157.589089469,4.2887,4.6547,9.6409374243,0.2287478555,0.15069,-11.2071266916
172.410910531,4.1494,4.7121,7.5486792315,0.132067636,0.15069,-19.52162557
*eldon fecit MMXXIII
Trilobe-E.pat