Hawaii has got to be one of the most gun unfriendly places on the planet. Unfortunately, you're pretty much stuck shooting on your lot. =/http://www.airguntrader.org/2010/06/hawaii-air-gun-laws-regulations/
I know this is an old thread, but I'll be visiting, soon, and I can hand-carry some items if shipping costs have kept you from ordering them... http://www.gatewaytoairguns.org/GTA/index.php?topic=83773.0Least I can do for my island-bound brothers.