Turns out this feat of imagineering is old as sin (well, about a year old), but I think these Hello Kitty DS styluses and/or styli warrant a closer look.
The Hello Kitty styluseseses—key or butterfly -shaped, your choice!—are sold by Strapya, international purveyor of all things strappy. Check out the product description:
It’s tacky. It’s cumbersome. It is irresistible.
Besides, it will go perfectly with my brand new bling: