The 16Tea hunters 十六茶 (16 tea, literally) is a bottled tea product from Asahi.

Lawson is releasing phone straps of us as a promotion. Lawson = a convenience store franchise.

Huh, then shall we go buy them after school?

It's so cute!

Shall we buy 3 each, then?

I... I'd like the one with this blue girl, please.

I'll buy every one with the pink girl! Bring out the ones in your storage, too!

Gravity tea Probably parody of an actual commercial product 十六茶. 16Tea十六茶(Jyuuroku-cha) and Gravity tea重力茶 (Jyuuryoku-cha) sound pretty similar.