Very nice! Love this project!
EDC stands for Every Day Carry
It seems like it would be a challenge to carve the handle and bowl separately, though by no means impossible. A dowel joint could work well if you have a good drill press vice (or a good eye). I would finish carving it after the joint is finished. However, cutting out a blank with a bandsaw or similar would be simpler and leave the waste in solid, useable pieces.
Ditto ArtisanEclectic and cdelichte — make sure it is sharp! Also, when working with razor sharp gouges, keep your fingers out of the way. I say this from painful experience.
Oils like tung, walnut, and linseed harden, and curing time depends on the oil. Other oils, like mineral and olive oil do not harden. They are easier to apply, but need to be renewed frequently.In my experience, olive oil mixed with beeswax does not seem to go rancid. An alternative would be to mix beeswax with a curing oil like tung.
Autumn Wind Blow Wire Tree