timff8 wrote:The experimental weapons faq said throwing axes and the like shouldn't be used because they make rocks uncompetitive - "2.Game balance with rocks. If you can make a throwing dagger, rocks become useless. And without a significant construction difference, this problem won’t go away. (If you do add a construction difference, you get safety concerns.)"
Your quote is out-of-context. The page you linked to is NOT arguing that throwing axes/daggers/chakrams shouldn't be used as rocks, it's just explaining why they are counted the same as rocks (don't pierce armor, only damage the head) rather than being their own category.
Thurat wrote:The BoW does not explicitly state that rocks must be 4" in diameter on all axis, only that they must have a diameter of 4". I've seen "throwing axe" rocks before that were constructed similarly to the weapons you're wanting to make. They were just cloth shaped like axes, stuffed with batting or some other soft filling. A similar design might work for you.
On the other hand, "diameter" implies it's circular/spherical, which in turn implies at least two axes (although not necessarily 3). It would be nice if the rules were more explicit, though. The wording for flail heads, which specifies two axes and uses circumference rather than diameter, is better.