Offline Marketing Strategy Help (Old Business Cards)

I was going through some old files and I uncovered about 100 old business cards of people I used to associate with from previous jobs. I'm trying to figure out a creative way to use these contacts to make money with affiliate marketing. For one, I know I can put them on an email list and email them offers, but I am trying to figure out other creative strategies to employ with this list. Most of the people on the business cards are small business owners, ie landscapers, car detailers, some lawyers, etc. I am open to hearing some ideas on how to make money with these people. Any and all suggestions is GREATLY appreciated!
:china:

Do up a cool post card for one of the offers and send it out and see what it does. I have done this a few times and get a ok response

I have the perfect solution for you. You should find a tax company or someone who will give you a nice cut from profits. Get a deal with one and recommend to your contacts. Tax season is near and they all have to file taxes. Dont bother with cpa or im products. It wont worth the effort for 1-2% conversion rate. Tax niche would bring you the highest respond rate especially if you have a good relationship with them.

Call them up and offer SEO services?

not worth alot to be honest, i mean yes hit them up offering services related to business but just test the 100 you have and scale it by going through the business directory... thats what i emant when i said 100 aint worth much. Grab a few thousand out of yellow pages