I think "stole" is a very fitting word, English happen to converge their spelling and give the same word different meanings.
"stola, stol" or stolē from Latin, Old-Middle English is the term for "robe, vestment"
stōl, the past tense of steal (stēl) comes from Old English stelan
English completely omits diacritic - the lines added to letters to differentiate pronunciation. How English words are pronounced can be regional, like "caramel" (ˈkärməl, ˈkerəməl, ˈkerəˌmel)
I think you did a wonderful job translator!!
And as far as merchandising goes, there is no official merchandise as of yet. They have release a physical (untranslated) copy of volume 1 of this series. And it appears during an interview, they had these hand fans. From appearances alone, I don't think it's printed but papercraft (gluing and layering different strips of paper, with drawn on details).
edit: was brought to my attention that stoat's exist