This Nylon Neck Lanyard has been designed especially for commercial applications where it is necessary to keep pens, styluses or even small portable electronics handy.
It comes with "cell-phone loop" that unclips to share whatever it is holding. This loop is easily "threaded through itself" to secure almost anything that has a small hole through it.
As an added safety measure it has a special snap-release on the neck cord to prevent users from becoming snagged.