Key-chain

"Some of our customers often want to send a small gift, a piece of jewelry or a key-chain along with the grass, so we'll incorporate it into the flat," Ms. [Peggy] O'Dea said.

Source: wiktionary

And, as if the guarantee of paradise were not sufficient, the museum also boasts a gift shop, where those so-inclined can purchase Hizbullah DVD's, key-chains, car-fresheners, and perfume.

Source: wiktionary

Its burgundy lining was a reference to the colour of her school uniform and the plaited leather and gilt shoulder strap was a throwback to her convent education, too, reminiscent of the key-chains carried by nuns.

Source: wiktionary

Another site, Rose Guardian, sells sharp-edged, cat-shaped "self-defense key-chains" and on Etsy you can find handmade switchblade necklaces.

Source: wiktionary