Dragon Sabre
From Star Trek : Freedom's Wiki
A special weapon, rare even on the planet of it's creation, Dacoral. This weapon resembles a steel rod. It will react only to the person who created it, symbionts within the metal of the weapon feed off of the hosts brainwaves. In return, the host is able to control the shape of the weapon, turning it into anything he can think of from a cup to giant spiked ball. The metal is composed of a special composite commonly known as 'quick silver' found only on the planet of Dacoral. There are only seven of these weapons in creation, including one owned by the Starfleet officer James Guildford.