Here is a bunch of weapons that I designed based on inspiration from many games that I've played.
Fantasy weapons
Post apocalyptic makeshift weapon
Fire and Ice sword
Fantasy guns
Orcish gun
Gun crafted from monster shells and scales
Curved Greatsword.
Executioner's Blade. Chance on hit: Dismember.
Tormentor's Letter Opener. Chance on hit: Bleed. The blade has blades so your target can bleed while it bleeds.