Æliens

As a project, you may develop a dialog engine for non-linear interactive story telling or a collage generator, that produces artworks from a collection of images.

You may further explore the various presentation platforms, and assess the tradeoffs with respect to the support they offer for authoring.

For further reading, I suggest to study interaction design patterns. It is also worthwhile to get some books on modern art, to gain some knowledge about art and design.