Nintendo DS Stylus Leash
I picked up this on Ebay last week. Overall I’m fairly happy with it. It clips on to the existing hook for the leash that comes with the DS, and the small slot at the top of the standard stylus. The hook that attaches to the DS end of the leash isn’t the highest quality in the world, but I don’t think there is any danger that it’s going to break or fall off either. The only real downside is because of where the leash attaches to the stylus, it doesn’t clip firmly into the DS anymore, but this is pretty much not an issue since you can’t lose it either. I left my normal stylus in the slot on the DS and I’m letting the one on the leash just flap around.
One thing to be aware of is that the stylus can’t be removed from the leash, but it does come with a stylus, so it’s actually a slightly better deal than I expected.
Also, the woman selling these is in West Virginia, so it showed up like 2 days after I ordered it, via USPS.