Some promotional items don't require much thought at all. The game's about darts, and the system uses a stylus, so here's a stylus that looks like a dart. You can pretend you're poking a dart board very softly!
The real fun here is using this stylus with other games. You can pretend you're being a total sadist to your Nintendogs, for example. And Dream Skincare? More like Dream Acupuncture. Or, if you prefer, Dream Shredding Someone's Face with a Dart.