This will not get you a spoon scraper, but will get you a scraper you can use.
Obtain a large 5/8 minimum across-the-flats 3-cornered-file. Go to the big end and cut it off, (from the shoulder toward the tip, leaving 3 inches plus the tang).
Using a 6 inch or smaller grinding wheel, start grinding the three sides of the file, so that you have a Three Sided Point at the end, the edges of which correspond to the original edges of the file. The sides will be slightly concave, and the edges curved. Do not get the file hot enough that you can't hold it. Once you have ground away all the little teeth of the file, stroke the sides with a good whetstone until the edges are sharp, not sharp enough to shave with, but sharp.
Put an old file handle on the tang and glue it so it's solid.
You can now use the curved edge of the scraper to shave bits off the surface of the bearings. You don't want to take off chunks, just real thin shavings, to give the surface a place to hold oil.