Last year a new Tsum Tsum based game, Tsum Tsum Land, was released in Japan and then in October the Japanese Disney Store released corresponding plush and they have now released a second wave!
Currently Tsum Tsum Land plush come in two sizes. Mini which are smaller than mini sized Tsum Tsums (maybe about a third of the size) and Small which are in between a normal mini sized Tsum Tsum and a small sized regular Tsum Tsum. Here are closer pictures of the two sizes:
Pictures courtesy of Disney Dream store from Japan
and used with permission