As posted on ddiction.org (English version here), Talka will be attending Fuhai Komachi 5, where he will be selling these Mini-Kaguya+Twuck keychains (in addition to some previous stuff)! For those who are unfamiliar, it’s from this really old flash which is a completely made up version of why Kaguya and Mokou dislike each other. The booth location will be at D21b. Yes, that’s D21b. And yeah, that’s basically it, I guess.
Also, it’s a bit late, but anyone who wants to see images of Reitaisai and the ddiction booth can see Talka’s post on ShrineMaiden.