Stack o' Mini Canvases

I've been painting the edges of my mini canvases (that's the 7 x 7 cm ones - the Lego Minifigure paintings and the Sweet Chestnuts). The canvases are so tiny that it seems impractical to frame them, so I thought it better to make a feature of the edges.

This image shows all the currently painted Lego Minifigure canvases stacked up, in order of painting. The canvas on leaning up against the side is Sweet Chestnuts.