I like the line drawing shapes a pencil or pen that connects a star. The curving line looks like a clip too which is another stationary item. This simple drawing logo communicates to indicate a worker like an architect who starts with the tool, pencil or pen and makes a successful structure,"Star" at the end.
On the back of our yearbook, we could create a barcode like the one in the image above and have the lines increase by size or show some kind of a "development" to emphasize the Metamorphosis theme. Maybe we could also create a shape out of the barcode lines to nicely finish our yearbook with a message referring to the theme.