Service clubs (such as Kiwanis, Rotary and Kinsmen Clubs), churches, schools, first responders, communities and businesses, both small and large, are normally excited to have the opportunity to be part of a family friendly event such as a soapbox race or build event.
Need a safety officer or radar gun? Consider having the local first responders present at the event.
Need to close a road for an event? It is made easy if you have the communities backing.
Need someone to do play by play commentary on the race? The local auctioneer may have a mobile auction and some free time.