you can also make photograms right ON your film
and over expose it like eddie was suggesting ..
use a bright bulb ( like 300W ) to expose your prints by contact printing
on RC or whatever you have ...
use something other than normal developer, maybe dilute print developer,
maybe no so dilute, but process for 30seconds instead of a long time ..
partially fix in spent fixer so it is half fixed and allow it to age as you print it ..
have fun !