Star Trek Klingon Bat'leth Blade

The bat'leth, or "sword of honor", is a traditional Klingon blade weapon. Resembling a crescent-shaped, two-ended scimitar, the bat'leth is wielded using three handholds along the outside edge of the blade. It is widely considered the most popular weapon among Klingon warriors.

According to Klingon mythology, the first bat'leth was forged by Kahless the Unforgettable in the 9th century AD. Kahless cut a lock of his hair and dropped it into the lava of the Kri'stak volcano, then plunged the burning lock into the Lake of Lusor and twisted it into a blade.