Of all the cool adult activities one can do that makes them feel like a child without actually being one (on the outside at least), using a tree saw from a helicopter might be top of the list. No, not a 'seesaw' - though doing that from a helicopter could be fun too. Trimming trees using a saw hanging from a helicopter is in fact a rather popular activity, and far more useful than you might first imagine, specially next to high voltage cables.
More information:
popularmechanics.com/helicopter-chainsaw