I don't know of any coming up for our area. I've planned a couple small ones before. My brother and I got a group of about 15 together and cruised from St. Louis to Lamberts in Sikeston, MO for lunch and back. That was an all day thing but was really fun.
I know STLMustangs does one the weekend of 9/11 as a memorial cruise. I may see if I can find a good route and start putting something together even if it's just a quick one.