I've tried it too; talking, joking, buying toys. My man works so much his libido has taken the hit but mine is still going strong. I haven't come up with a good solution except to tell him the less he gives it to me for free, the more I will spend on it for toys. I hoped that would appeal to his inner penny pincher and macho man who doesn't really like all the toys. So far I just get the occasional chuckle or eye roll.
It's not an easy road but I wanted to say you're not alone and wish you luck.