https://www.amazon.com/Kershaw-6034T.../dp/B00URWYM00
The Kershaw/Emerson E-train is an excellent proxy for any of the waved live blades. And for $25-30, it’s hard to beat. I used one recently at a Systema camp, and was the only one to ‘successfully’ run a folding knife. Everyone else either used big fixed trainers, or tried and failed to use conventional folders.