Oh, how well I remember!! I grew up in Iowa and yes, we had them at every graduation, anniversary, and wedding.
They have pretty much gone out of vogue but my dad wanted them at his reception when he remarried. Just like indydebi described, they are basically cream cheese and sugar. I don't have the recipe, but I suppose I should have it in my file somewhere in case someone Old School - like dad, wanted them for a party (but then, where would I get the molds...?)