My kids at Hokubu Shogakko made this at the end of winter, when the snow was melting, and it was a blistering 7 degrees C during the day. It felt warmer inside of this dome than my house (and this is not hyperbole, unfortunately). Thank god for summer! Right now its nice and cool up here and everyone else is stuck sweating it out all over most of Japan. Gotta learn to cherish the moments. Then again, there are no bugs during the winter months, and none of that insidious mold!
My house.