Have someone gather up a list of potential sponsors from around the US. One that has up to date information and good contacts and e-mails. List should include any Toyota based vendors as well as other vendors that might be interested advertising/sponsoring at events.
Only distribute the list out to events that are Sanctioned TLCA events. Make it a perk for having only TLCA members present at the event.
Only distribute the list out to events that are Sanctioned TLCA events. Make it a perk for having only TLCA members present at the event.