I have managed to cobble together a 4x5 pinhole camera with a decently wide angle of view. And today, I tried some just-purchased Arista.EDU #2 RC paper (recommended in some other threads). It appears to do a better job than the MGIV I tried last week.
I think I now have enough data to stumble through another pinhole day without coming up empty handed. It was a fun project, mostly using scraps from around the workshop. I actually managed to do a dimple-and-sand pinhole in 1 mil brass shim stock -- whooo whee!
The B&W is an actual contact print on Arista RC #2 from the paper negative of same paper (and yes, left to right is not reversed!)