Mike,
Just put together a list:
Who do you know from...
school
in your neighborhood
through work
financed your house/landlord
on your softball/dart/hockey team
church
local government
hobbies you are in
the grocery store
sold you your tv
helped build your home
the local attorney
opened a new office in your neighborhood
has a new company
in your wedding party
sold you furniture, carpet, etc
poured your driveway
sold you your insurance
put in your HVAC
your wifes work
your kids school
your kids friends parents
You will have a load of people you never thought of, then just go see them. Since you have already spoken with them, or are aquainted with them, you have a common thread to break the ice. Have pictures of your car, and just talk. Remember, you dont need to make a killing on one guy, get a little something from a few, and dont forget to take goods or services in on trade. I know you built your own house and all...Im sure you had to hire somebody to do something...go talk to them. Talk to the guy you spent $80,000 in materials with. The dumpster company. The place you bought donuts for the garbage man. The garbage man.
Long winded point being, its alot easier to talk to someone you know. My 3 sponsors so far are a roofing company that is owned by a co-worker's son, a home inspection company that I referred to a client, and a magazine that kept calling to try to sell me ad space. All people I deal with on a daily basis. Dont be afraid to ask. Go to your favorite restaurant, bar, coffee place. My favorite thing to do is try to sell telemarketers. Its fun. Dont hang up on them, turn it around and offer a trade, whatever they are selling for ad space on your car! Just have fun, thats why we do this.
JUST GO TALK TO PEOPLE DAMMIT!
Damn realtors just keep going on and on, dont they...