Marketing Ideas!?!

I'm always curious to see what other people are doing with their marketing. In the past I have held a neighborhood garage sale, while I didn't recieve anything directly from it I did recieve a refferral. Some of it was my fault it was a little unorganized, the area wasn't fully aware of what I was trying to do, I didn't have the best signs and the drizzle that morning destroyed many of them, and because I used company envelopes a lot of people didn't open the envelopes. Needless to say we are ordering signs that has our information as the sponsor, we are sending the letters in plain unmarked envelopes, we are following up the letters with door to door delivery, I've talked to the salvation army about doing a pick up if people want to giveaway the stuff that didn't sale, we will follow up with everyone in letter and thank all the participants in person, and we are having snacks provide by a local lender and bags made with our information and the lenders information. I've done a postcard mailout followed by a mailout with a copy of the postcard wrinkled and a not this is important please don't throw this away again. I recieved a few phone calls on this. It seems that the older people were almost insulted while the younger folks thought it was the best thing they had ever seen Of course I've tried the standard postcards, mailouts, door to door, promotional calendars, memo pads, and pens. These were all good for name recognition, but I haven't recieved any business from them. This year we are sponsoring a minor league baseball game and giving away kids season tickets for all clients, along with giveaways, and promos tied into the team. I like to do three to four things a year that are completely different that no one around here is doing. Got Ideas????