I went to Michael's craft store today to get a frame for my D23 certificate and found Disney Princess Lanyards for $1 a piece there. They had a blue Cinderella one, and pink ones with Belle and Auroa as well as a pink one with Belle, Aurora and Cinderella together. They also had a High School Musical one as well. The Lanyards are full length and have a clip on the end to attach to a medal, keyring or keyholder.
Just a heads up for anyone looking for more lanyards!