Look at the video below - I am registered as a marrow donor, and it literally takes 1 minute to fill out a form, and a cheek swab.This is especially important for minorities as the match is largely based on a genetic match.
If you are matched, you save a life. And they don't cut you up! It is similar to stem cell donation; just like donating some blood! If you are @ Kellogg, do checkout the facebook page here