Bit more info on the encore outfits. Everyone was wearing green (top and skirt/hot pants, dresses, shoes/boots) then they had random Yellow fluffy bits. Over they're tops or round they're waist. Koharu's WAS a nappy.
Not so much on Reina. It was more the others doing funny stuff but it was all rehearsed. Sayumi was doing a MC skit thing (I think it was about her being cute) and she was asking others questions and she kept telling Eri to SHUT UP (in English LOL) and kept pushing Reina away. That was funny.
Also when they had the trampoline/trampet thingy out and they went into Ikkimasshoi after Shanimuni Paradise everyone was stood on the floor singing and dancing whilst Koharu was still bounching on the trampoline.
Oh Oh. There was a bit of Reina / Risa interaction again. Plus Risa sang Yossi's part in Nature is Good

As we can't get a Reina x Maki pairing. Reina x Risa is the next best thing.
I may come to remember some more Reina things later. I'll add when I do.