Endorsement?

Everyone knows I love counting change, so why shouldn't I endorse Coinstar, like as a "celebrity" endorsement deal?  I don't really approve of what they are about, and I think people are dumb for using it, but we both count coins so we have that in common.  Maybe I could undercut them and count people's coins for them at a better rate - maybe wearing a shirt with a subliminal "call me!" message in my commercial - or just people (friends at first) will say things such as "Man, that Nick Eddy counted my change and did a fabulous job!" and that will lead to my tabulating their lucre.  But then this would lead me to have unrealistic expectations - that, perhaps, a customer would be so glad to have all those jars of change off their dresser that they would say something to the effect of "well, why don't you just keep a third of it?"- and I have learned even recently that while I can tend to be inordinately generous, many others really cannot.