In the previous session, in which she made the character on-the-spot and dove right in to the game-in-progress, I just used the same stats as a throwing knife. Which, not surprisingly, is a little wimpy. Chances are, those stats will result in her feeling underpowered, and eventually swapping to a better ranged weapon, like a bow. That would be a shame.
She's a new player, with no previous tabletop experience, so rewarding her flavorful decisions is the right thing to do. My hope is that it will encourage her to experiment and invent, and overcome any shyness or awkwardness about the game. It's always best to make someone's first couple of gaming experiences positive and welcoming, so I've spent a tiny bit of energy figuring out ways to make it a feasible weapon choice in the long run.
First, I'm pumping up the range to match that of a sling: 4/8/16 (instead of a daggers 3/6/12). That's a pretty minor boost, and something I can do without any worries about balance, but of course it still makes it inferior to a bow.
So, to pump it up a notch, I made up the following edge for her.
Boomerang (Combat Edge)It's not terribly realistic, admittedly, but it catches the proper cinematic feel of someone using a boomerang weapon. More importantly, the the second attack roll will help compensate for the low damage rating, making it a good mook-killing weapon even in the later stages of the campaign. The secondary attack will take some of the sting out of bad dice rolls, which is something that can be very frustrating for new players.
Requirements: Agility d8, Notice d8
When you make a Throwing attack with a Boomerang (the weapon), you may pick a secondary target, which must be a different character than the primary one. If your attack misses against the primary target, you may immediately make another attack roll against the second target. Only one target can be hit per round - if you hit against the primary target, you do not roll against the secondary one. You're only throwing one boomerang per action, but the circular flight path "buzzes" past more than one target.