Keeping my much younger husband interested in me, sexually.

It depends what you mean by 'out of the ordinary'. Visual and mental stimulation are always good ways to arouse a man. But you need to know what turns him on most. Does he like a trimmed, shaved or 'natural' vulva? How often do you reveal yourself to him during the day? Do you wear underwear? Does he like seeing you masturbate (or not)? What about touching/revealing at unusual times? How about using a secret code to communicate sexual thoughts?

Just a few pointers to start with.

If you have not try not wearing clothes around the house and have him join you being naked.Sleep naked for starters.Go without underwear on when going out in public.Masturbate in front of him.Try giving his penis some sucking with your mouth.Answer the door nude when he comes home after work.