Free: Contests & Raffles.
Hawaii already has you by the balls. Anyone moving to Hawaii is required to take ALL of their guns to the Honolulu PD and register them. Had to do it in 1986 when I moved there; thankfully only had about a 1/2 dozen and not 3 times the amount that I own now!
Always kind of surprising with how bad many areas there looked, that the violence wasn't worse. It was like anything more than a beat down or a machete hack was too much effort--the aloha Friday effect or something. There were parts of far west Oahu that were considered worse than Chicago or New Orleans, but just didn't result in a homicide.
Forget the bear spray, use wasp killer. Concentrated delivery stream, 10X the product, and only $3.00 on sale.