I recently got a Madam Herta fumo and boy is she big

Made mike,drawings are from Plant library (行星图书馆),if you are interested in them plz give me a private message.

there has been coffee stains but might be chocolate idk, prob coffee, on my blue reimu's bum for several months now.
im wondering if anyone has any non invasive (i mean like not entirely dunking her in a bath) tips, like if i could use a magic pen or whatever without damaging or bleaching her, or if its just better to leave it alone or try using water

also had $5000 loose for a down payment on something so thats what the money spread is about, also i got a new cup 😭😭💔💀

Hii, I want to carry my little remilia to an orchestra to take some pictures, but I dont know what kind of bag should I use. I want something small to show her little face, but not interested on those bags with plastic windows. Any recommendations? Thanks