Susie, at least those for the Kenmore are way easier to find than the Singers, as they were sold as full sets, while the Singer was sold with a coupon for three cams - very few people bought the full set of cams.
Can you post a picture of what the problem is, I'm not following what you are describing. I've only found two styles, one for the open arm machine, one for the flat bed machine. So I'm wondering if you have a different monogrammer than the one I'm thinking of. BTW, if you bought the "Sears" one that is about the same as the Singer that the OP was talking about, that is different than what I'm talking about.