One of my favorites (and I have used it OFTEN) is an old brayer I got at a garage sale. It is one which releases the roller quite easily. I randomly wrapped a rubber band around it and returned the roller to the handle. Then I gather paint gently, so it doesn't get to much into the spaces between the rubber bands. Then I just roll it on.
Here is a photo of the roller as I used it for the leaves on "Two Roads Diverged"
In "Winter Harvest" it is smack (pun intended) in the middle)