So I used a diode laser, but with Cricut “infusible ink” markers, which are basically a form of dye sublimation. Heating up the specific spot enough to get transfer without bleeding is tough, though. I end up with less vibrant colors than I’d like, and this particular batch of blanks sometimes just doesn’t “take.” Mostly I end up with good detail and nice pastel colors that are on there better than paint or stickers, but not nearly as deep as proper dye sublimation.