>>106733873The happi is custom-made, I remember the tweet announcement for it appearing on Anya's tags some few weeks ago. So does that kitsune mask T-shirt.
There was a HoloID jersey some time ago with a different design, so I thought it's also custom made, but apparently it's a new official merch
Other than that (and the obvious ones like the flower arrangement & Mokou-sama cutout), the rest is official merch
I think that Anya lamp is also official? the Hololive x Otaku Shop collab