Here is a little video in which I am painting pieces that will be cut up and used for collage. It is a little different than just painting Papers For Collage, with all-over designs.
The supplies I use in the video include: Golden Fluid Acrylics, interior latex house paint, cheap bristle hardware store brushes, a blunt stiff brush, Lyra Graphite Crayon (9B), a 2" soft rubber brayer, and a 1" flat brush. Here is the paper I'm using, and you can see the paper holder/cutter here. Links are for your information. I'm not trying to promote these particular items; they're just what I'm using.
Here are the collages I made using the pieces in the video. I used other elements as well. They are all 11"x14" on Bristol:
You can find these images and others as prints or on products at Pixels/FineArtAmerica here. Thanks for visiting. I would love to hear if this is useful, or if it is something you've tried.