Fun stuf, travel light obi makura

I have bought a bunch of obi`s and these to obi makura, were in the lot.


I have no idea then the bottom one are from, maybe the 1970-80??? maybe some of you out there know.


I found it interesting, that where have been experimented with an object like the Obi makura, in directions like the bottom one, the one that can be filled with air, easy for travel with, do not take much space ; )