Hey, they might be a magical delicacy. Marinated in Cthulhu juice.

[Sure, Stephen, just ignore the innuendo. Sam just sighs and tugs to break his bonds, then loops a binding around his chest and arms, pinning him to the chair.]

It's harder to visualize one continuous binding once it gets too convoluted, though. Like if I had one connecting your wrists and your ankles, unless you were kinda- magically hogtied. [Which he can't do with Stephen in the chair.]