pixiv tags these ExKeine-furball things as "すくすく白沢" and I've been seeing quite a lot of them in danbooru lately. Should we have a tag for them as well?

lol at the marisa doll on Alice's head.

Seven-Coloured Factory of Sukusuku Hakutaku Mass Production?

Adorable.

A hakutaku is not properly sukusuku'd until it has the appropriate hair ornament - only then can it survive the Gensokyo wilds.