Link to article: http://www.usatoday.com/story/news/politics/2016/12/17/gop-electors-targeted-500k-ad-buy-final-anti-trump-push/95562336/
Not very effective. I mean, theoretically, if they vote for say, my cat Bob, enough to throw it to the House of Representatives, the house will vote for Trump. Or if they somehow convince the electors to all vote for Bob my cat, then what? None of it is explained.