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This tool costs $12.99 at woodcraft.com.
Man is it cool. I like being able to scrape towards me as well as away from me, and this thing is stable and simple and usable with one hand.l like it.
DaveB

Dave,
Is it a scraper holder?
How does it work?
Kevin

Kevin - my bad, did not even say what it was. Senior moment...

Yep, a scraper holder. Insert the scraper, tighten the wood screw, scrape. It has a built in curve so you don't have to provide a curve with your hands, thus making it a one-handed tool when needed. Plus the curve keeps the sharp corners well away from the work. Takes scrapers up to 6" long.
DaveB