When I was at the Paso Robles Festival of the Arts people kept pulling out 10x20" canvas panels (that I had spray painted and stenciled) out of the bin and holding them up and looking at them.
A few sold, but I had 4 left. As I was putting them away when I got home I thought, "these would make cool journal covers!"
A friend had recently gifted me with several huge sheets of watercolour paper, that would be the perfect size to make signatures with and bind into the covers.
I added papers from old sailing charts, maps, newspaper reproductions,
and more waterolour paper and came up with fun, interesting signatures for sketching and or journaling.