You can use this to generate flag designs for all your piracy needs.
This LoRA has been trained on renderings of Jolly Roger flag designs.
I used the tag "jolly roger" on all training images, use that as the main trigger word. However, you can improve the results you get by using other more specific terms that were common elements in the training set, these include:
"<color> field background" (e.g. "black field background")
"death's head" or "skull"
"crossed bones" or "crossbones"
"cutlass" (although most depictions of pirate flags, including the ones in the training set, show scimitars rather than cutlasses)