Boomerangs!

[Machiavelli]

You see, I used to fancy myself an aerospace engineer, so unless magic is applied, I have a pretty good idea of how this should NOT be able to fly. Telling me it flies "just because" and in any old way it needs to in order to be convenient... makes me cringe. Old habits die hard, what can I say.

Oh, and don't get me started on applying Strength to a thrown weapon! I'll be red in the face and raging like a berserker for a half-hour! It's a non-sensical rule, I tell ya!

If I were DMing and someone asked to use a boomerang, I'd just charge them the appropriate price for a magically returning throwing club, hand them a print-out of those rules, or flat out deny their request.

 

[Plane Sailing]

Real hunting boomerangs weren't returning ones - but the spin and aerodynamics give them greater range than an ordinary thrown club and the rotation makes them hit much harder.

So for a real boomerang I'd make it an exotic weapon like a thrown club but which has damage increased by 1 step (so it is probably a 1d8 20/x2 crit weapon) and I'd give it a longer range increment.

(the returning boomerangs are the much smaller/lighter sport ones, typically)

Cheers