Trigger with, "SMB Artstyle"
A bit of a throw-away model for me, but it can achieve some pretty cool results if played around with. Started by dreamboothing a series of images from the original NES game + a number of random 3d/photorealistic generations I've made over the past year. Generations made from that model were then dreamboothed again, etc etc. Eventually a LoRA was extracted from a mish-mash model that calls up Super Mario with the trigger, "SMB Artstyle".
Try it on different models for unique results. It was trained on SDXL base 1.0, but some of my better/more interesting results came when using it w/ more photoreal/cinematic models.