The masks are easy to make and I think it’s a better alternative to hacking up your Holga especially now that the factory has closed and it’s only a matter of time before they become extinct and/or the price becomes exorbitant.
I’m still considering buying the 38mm lens for the Diana. When I Google the super wide lens and look at the images that are supposed to be associated with it potluck comes up. The page is filled mostly with images from normal and fisheye lenses, and the product itself. Nothing really that has shown me what the lens can do. I guess that I’ll have to buy one to see for myself and find out.