I got my Figma Drossel last weekend when I was at my Mum's house. And like many other Drossels, my Doro-chan had stiff shoulders. Meaning I couldn't do much with her right out of the box. And it was right after we got home from picking me up at the train station.
The best thing to use is hot water. You take off her head and forearms then dunk them in for a few seconds. After that you just rtate the joints CAREFULLY till they can move freely. I found a vid on Youtube that shows you what to do.
Anyway, with that done, I got to put Doro-chan into all the cool poses I wantedXD including this rocking pose.
Yeah, I bought my Figmas guitars.
Drossel is (Oddly enough) owned by Disney and Toei
the figure was made by Max Factory