Made this on Sunday. I used makgoelli (Korean rice wine) as water substitute. I also use activated charcoal and green tea polyphenol tablets (dissolved in water) as colorants. It traced so fast I couldn't do the drop swirl that I originally plan. It ended up a bit like camouflage, so I don't really mind.
Even though I added peppermint EO, the soap still strongly smell like the makgoelli. I hope the smell will fade out soon.