Tillandsias. I like Spanish moss because I can hang it on a tree, fence, or clothes hanger in a sunny airy place. It just needs to be watered to keep the plant gray green and plump. For me it is every day, but it is out on a tree where the wind hits it, but if I miss a day it won't sulk. Since it dries quickly it is the one plant I don't have to worry about getting too much rain. It gets thicker over time and then it can be divided and spread out otherwise the center that does not get light will turn black.
Of course this only works in a frost free environment.
In colder environments they still make good house plants that need a bright spot and a little more humidity. Other tillandsia are more compact and grow slowly and have showy bracts after they bloom. Since they can be hung and are not usually potted in dirt, they harbor few pests and do not take up a lot of floor space. They don't require frequent watering although misting would be appreciated.
Other tillandsias can be mounted with a glue gun to pieces of driftwood, cork, planks, or trees and while they still need watering, they are forgiving if you miss a day.
Happy gardening in Hawaii. Gardens are where people grow.