Hi,all! John, back in the good ol' days, before I knew about commercial scraping cards, I used a plane blade. The hand held plane of course. If sharpened on a grinding wheel and leaving the burr, it will make a pretty good scraper. My High School woodworking teacher showed this method of making a scraper.
Have a great time at the Senior Center!!!:D
Sound like your shop has a full schedule pre-Christmas! Hope you don't have to take too much time out to shovel that white stuff!
Here's the story on the brass hammers. As said earlier, I made 4 handles from some scrap hard maple, while waiting for the 12" brass bar to arrive. The .875" (7/8") bar cost $27.50 plus shipping. When the bar arrived, I was worried about how to cut off 2 1/2" pieces. Finally decided to use the existing 1/2" blade on the band saw. It worked wonderfully well. The blade left small vertical ridges on the cut, and could have been used that way for the flat side of the hammer head. But later on, I decided to smooth it down with sandpaper on the lathe. (I'm getting ahead of my story)
After chucking up the first 2 1/2' hammer head, I tried the recommended method of rounding the protruding end with a double cut file. I would still be turning and filling, had I stayed with this method.

Instead, I grabbed my Shopsmith lathe skew and went to work on the brass. To my surprise - it peeled off the ind quite well!:) So used that tool to do all 4 hammer heads. Also used it to put a bevel on the flat side of the head. I tried to use the parting tool to cut the recommended ridges near the ends of the heads, but found the brass only scratched and the tool came out worse for the wear. So only one of the hammers has one circumference scratch. The rest were left smooth.
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Octogenarian's have an earned right to be a curmudgeon.
Chuck in Lancaster, CA