When making monkeyfist poi, I use a double ended eyebolt, o-o, with the knot tied securely through and around the one eye, and the other external, and use a quicklink to attach it to chains. If you want to make an intermediary head, use a triple eye-bolt, o-o-o, and tie the knot around the middle eye.
Problem with most telescoping staff options is that they are usually aluminum, because it's lighter (same with crutches) which is a pain to weld and bends easily.
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Yellow and blue make green.