Jaskier, Dandelion, or even Julian Alfred Pankratz, Viscount de Lettenhove. All of these are the same name for the same disaster poet, bard, minstrel, spy, and professor. Why would he call himself something reminiscent of a yellow flower? Well, in the books, he's blonde!
This soft blue olive oil soap is topped with a dash of a silver-blue is scented with the same kind of notes you'd think would work well for him: lemon, rosemary, a variety of soft florals (likely noblewomen's perfumes!), sandalwood, patchouli, musk, and vetiver.