Yes, there are several ancient or old weapons that can be easily disguised as common tools. I have compiled a non-exhaustive list: 1. **Hidden Blade**: These blades are designed to be worn on the arm or wrist and can easily be mistaken for a bracer due to their compact size. In reality, a hidden blade is a small pointed or sharp weapon worn on the hand of the wearer (usually a warrior or noble). 2. **Dagger Embroidery Needle**: A bayonet as a fashion accessory, usually attached to a hat or cloak. These needles can be small enough to be mistaken for a common clothing ornament or brooch. 3. **Fan Sword**: Some traditional Japanese fans (fans) have blades or tips attached, allowing the user to use them as a tool or melee self-defense prop. For those who are unaware of its true purpose, it is just an ordinary fan. 4. **Hidden Weapon**: A hidden weapon used for unarmed combat that can be shaped like a common object, such as a ring, glove, or stone. 5. **Folding Dagger**: Like an ornate folding dagger or switchblade, it can be carried in an innocuous-looking container, such as a wallet or brooch. 6. **Concealed Sword**: A sword or dagger used for self-defense that can be concealed in a seemingly innocuous object such as a cane, walking stick, or umbrella. 7. **Top Hat Sword**: A 19th-century sword worn by double masters who concealed it in a top hat, making it nearly undetectable in a crowd. 8. **Boot Knife**: Some boots are designed with a small knife or dagger attached, usually hidden in the heel or tongue, making it difficult to detect. 9. **Mettronix**: This ancient Roman and medieval throwing device is made of a metal plate with spikes attached to a short rope or wooden handle. The Medtronix can be disguised with a piece of cloth or a baby's sling, making it a concealed self-defense tool. 10. **Hook Sword**: A hook or hook-like spike used for self-defense or unarmed combat that can be contained in a container that looks like a cheap trinket or shoe buckle. These examples illustrate how many ancient and old weapons can be cleverly disguised as ordinary items. This list is far from exhaustive, and there are many other similar items in the world that can be disguised.