More like meditation beads. They're called komboloi. Here. I'll show you how to use them.

[He pulls another set of beads out that are blue and decorated with a single owl charm. He flips the beads around his hand a few times in demonstration then does a couple of fast tricks before stowing them away again.] You use the sound of the beads hitting together and the motion of your hand so you don't have to think about things that worry you. I use them to help me focus while I try to multitask. [shrugs]

But I can show you more later when there aren't any costumes or treats that demand your attention. I just didn't want to forget to give them to you. [shy smile] The colour reminded me of your roses.