TrailBuddy Trekking Poles a.k.a. Hiking Poles: Good For Beginners? 

These are easy to pack in a suitcase. They are lightweight, collapsible, and they were less than $20, imagine that! The prices on Amazon change all the time, so keep checking for a "deal".
Here is a link to the poles as well as extra rubber tips:
TrailBuddy Trekking Poles: amzn.to/3HOLGG9
Replacement Tips: amzn.to/3vJugI2
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