Sewn, I know TexasMusicMom does that kind of embroidery, as does Hummerlou, you could contact them via pm. Not sure who else does it but I know they both do, good luck
I wonder if you contacted a store that sells does classes with those machines if they would do a block for you? Just a thought
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"My will is mine.....I shall not make it soft for you" Aeschylus, Agamemnon