You may need to remove the star-shaped marker grommet because it is torn or not centered in the hole. It turns out that the rubber grommet is not needed to hold Crayola Paint Brush Pens so it can be removed without any problem. The videos below will show you how to open your Finch, remove or replace the rubber grommet, and put the Finch back together.
Taking Apart Your Finch 2.0
Replacing the Rubber Grommet