This openscad code and models solves the Challenge: "Storytime" Make a specialized bookmark for a special person or a special book. With the following parameters: "Tween" and "Evening" and "The Netherlands". What little I know about the Netherlands and tween activities in the evening make me imagine ice skating on the frozen canals as the sun goes down. I have heard that this is a popular past time when the weather cooperates. I have uploaded 3 STL files. See below for two color printing details. You can also just print the lines for a nice thin bookmark. You can use the openScad code I have uploaded to modify the size and thickness of the bookmark, AND create the separate STL files to be used for two color printing. Customize by using the free openScad program and downloading the .scad file. openscad.org