I often stop at this eatery in Marukai, which is along my route between home and my trip to Marti's or Carol's house; and also very close to Joe Hamamoto's (where I swung by to visit after Marti's 1st Sunday gathering today).
Boaz Shuval sent me a link to directions for the polypopagon (pop-up polyhedron on pg 36).
Related links of interest:
I have something like this Pop-up calendar that I bought from Bed, Bath, & Beyond years ago. Here's a picture of it. (And it does use rubberbands).