Although my Aspergers is very mild (Not mold, I wish I could get the spoll chuckker
to work on my Android phone, and I thought I had done a reasonable proof read of my first post too) I have a son (he's 25 now) who is quite severly affected by it, and I also know quite a few others with the condition. Although communication can be very difficult at times communicating about things that are a passion generally seems to be much easier than many other every day communications.
One approach that may work is not to think about it as selling or promoting the sale of your work to a customer. Simply talk to people about your art, without deliberatly trying to sell it. It is after all your hobby and something you like doing, so it should be a subject you are confident about. Have some examples on your phone for example so that you can show them what you do while talking with them. Then all you have to do is drop in at the end that you have some work avilable, and where to find it, FAA or where ever you decide to try. Getting some cards printed is easy and quite cheap.
The other thing to do is not set your self huge expectations sales wise. Put your work out there, and make your aim simply to talk to people about it, and just hand them a card at the end of the conversation. If nothing else treat it as an exercise in building some confidence. Then any sales you do make become a nice added boost, not something you need to achive to measure sucess.
Alan