I like the concepts both with the boomerang and the bow and arrow standing in for a stylized "K". Awesome! Add a little "gleam like metal" and make it "3-D" to both to help make then appear more powerful. I like the boomerang in
#30, turned to the side, more than the boomerang in
#29, because it gives more a sense of motion. Maybe add the boomerang from entry
#30 to the font in entry
#29. Also, some variations on the bow and arrow in entry
#28 would be nice. Thanks.