An intuitive software erector kit targeted at people new to programming, but with enough potential to stay useful once they've learned, inspired by HyperCard.
This could be used for implementing the recent items window, or a game map, and could just be a special mode of the Stacksmith canvas (#12) if you explicitly show it while not in "Edit" mode. Allow themeing it a bit, and don't just hide objects that would be invisible anyway (like plain objects, XCMDs etc.) but also allow filtering the display (e.g. only ones that have a "firstLevelMap" user property set or so).
This could be used for implementing the recent items window, or a game map, and could just be a special mode of the Stacksmith canvas (#12) if you explicitly show it while not in "Edit" mode. Allow themeing it a bit, and don't just hide objects that would be invisible anyway (like plain objects, XCMDs etc.) but also allow filtering the display (e.g. only ones that have a "firstLevelMap" user property set or so).