Somehow reminds me of Christine Felten and Veronique Massinger's Caravana Obscura.
They took a camper-trailer and converted it to a pinhole camera...
I'll try and find a decent link... but the girls don't have a website.
Just found this
Le SoirThey have a few pictures as a portfolio... text is in French though...
These were taken with the caravana obscura