Call

Talk to you pastor

Talk to you parents

Talk to all your relatives

Talk to any past pastors or youth directors.

Letters

Send letters to every family in your church.

Send letters to everyone in your family.

Send letters to every friend you have.

Send letters to every business owener that knows you are knows one of your family members.

Send letters to the friends of your family members.

Send letters to your co-workers.

Send letters to past pastors, youth pastors, and Sunday school teachers.

The idea is to work every possible contact you have or have ever had.  You will be surprised of who all wants to help even if they haven't seen you in several years.

One letter will not be enough.  You need to write a letter every other week letting everyone know how you money raising is going.  Email works great also.  You can email once a week.