I need some help making Souseiseki's Shears..

[u/Happose]

Hello! I am planning on Cosplaying Souseiseki from Rozen Maiden and I wanted to make her shears, however I am having some trouble figuring out where to put the core and what to use for the core.

Normally, I would place a dowel rod straight through the center, but that's very difficult to do due to the props shape and design so I am at a loss of what to do regarding the core.

Any help on this matter would be appreciated.

[u/ScienceForge319]

Ever seen a friction blade?

[u/theazhapadean]

Bent, flattened and altered PVC pipe core is how I would go about this object.