Hi Diana, They have holes in them. So you can use Wire, Tiger tail, Fishing line, Headpins, Strong Thread. Stuff like that will work. I have made many sun catchers with these on fishing line. They are still hanging after at least 25 years! Hope that helped. Fanned you back! :o)
Sorry Aplus, I thought you were referring to the other Vintage Lamp pieces I have up. But, I'm still 99% sure the Dangles are Crystal, Not Glass. I have some glass ones as well and you can really see the difference in them.