Ray, your quest may be better served by moving this post to the WTB section.
Here's a repro for less than ten bucks.
https://www.keepshooting.com/luger-tool.html If it's just for shooting, this will do the trick. The important part is the thin lip on one edge of the hole. Hook that lip over the follower button on the mag, pull the follower down using the short leg of the tool, and Bob's your uncle!