Interesting that he used the cigarettes that your husband bought him on shabbos. Sometimes I get my daughter a mani/pedi certificate but since I bought it for her she does not use them on Shabbos.
I agree with aries2756. Do not buy him cigarettes or liquor. On the other hand, get him something that is good for him, a healthy outlet. For example if he likes to work out, get him a gym membership or weights, etc.