Jinny Beyer has a pattern called Moonglow that has Mariner's Compasses of various difficulty in it.
It was a free download once upon a time - but I do not see that now.
https://jinnybeyer.com/product/moon-glow-quilt/
If I remember correctly - The "unfinished" size of the Mariner's Compass part of each block was 11-3/4 x 11-3/4 inches.