Maybe it's just me, but I'd try to avoid common acronyms or ones very similar to very well-known acronyms.
NASA (National Aeronautic and Space Administration), NASCA and NASCC (too similar to NASCAR), SPCA (similar to ASPCA), and SCA (Student Council Association.) I know everything is bound to be an acronym for something, but maybe try to avoid the ones that are apt to pop to most people's minds.
Maybe these aren't common ones for everyone, but living in the South, NASCAR is very big, and coming from "Rocket City" (Huntsville, Alabama) NASA is a household word.


Maybe these aren't common ones for everyone, but living in the South, NASCAR is very big, and coming from "Rocket City" (Huntsville, Alabama) NASA is a household word.