A counter drone device adapted to render propellers of drones inoperable. The counter drone device may be a weighted filament adapted to be projecting into the propeller of a drone so as to entangle/ensnare/wrap around propeller shaft and/or blades, rendering the drone inoperable.

A jewelry display has a ferromagnetic planar substrate having a front surface opposite a back surface. A wall attachment mechanism is attached to the back surface of the ferromagnetic planar substrate. The wall attachment mechanism is configured to attach the ferromagnetic planar substrate to a substantially vertical surface, such a wall. A plurality of jewelry fixtures are configured to be removably attached to the front surface of the ferromagnetic planar substrate. Each jewelry fixture has at least one permanent magnet and a jewelry holding structure. The at least one permanent magnet of each jewelry fixture is magnetically attracted to the ferromagnetic planar substrate. At least one of the plurality of jewelry fixtures is a ring holding structure, a bracelet holding structure, an earring holding structure, a necklace holding structure, a watch holding structure, a bowl structure or a shelf structure.

A jewelry display has a ferromagnetic planar substrate having a front surface opposite a back surface. A wall attachment mechanism is attached to the back surface of the ferromagnetic planar substrate. The wall attachment mechanism is configured to attach the ferromagnetic planar substrate to a substantially vertical surface, such a wall. A plurality of jewelry fixtures are configured to be removably attached to the front surface of the ferromagnetic planar substrate. Each jewelry fixture has at least one permanent magnet and a jewelry holding structure. The at least one permanent magnet of each jewelry fixture is magnetically attracted to the ferromagnetic planar substrate. At least one of the plurality of jewelry fixtures is a ring holding structure, a bracelet holding structure, an earring holding structure, a necklace holding structure, a watch holding structure, a bowl structure or a shelf structure.

Propulsion systems, puncturing devices, and firearm barrel cleaners that use these components to propel cleaning and/or lubricating projectiles down the barrel of a firearm are disclosed, along with related methods of manufacture and use.

Propulsion systems, puncturing devices, and firearm barrel cleaners that use these components to propel cleaning and/or lubricating projectiles down the barrel of a firearm are disclosed, along with related methods of manufacture and use.

A system for propelling an air-driven projectile from an air gun includes an air gun with an elongate bore and a source of compressed air in fluid communication with the elongate bore. A projectile is disposed within the bore of the air gun, the projectile having an outer diameter that is less than an inner diameter of the elongate bore.

A system for propelling an air-driven projectile from an air gun includes an air gun with an elongate bore and a source of compressed air in fluid communication with the elongate bore. A projectile is disposed within the bore of the air gun, the projectile having an outer diameter that is less than an inner diameter of the elongate bore.

A new and novel non-lethal pellet shaped marking round for use with air rifles or air pistols, which utilizes the technology and ballistics of a bullet-shaped pellet projectile, and is designed to travel through a rifled barrel or a polygonal rifling barrel. Also disclosed is a novel non-lethal marking round pellet designed with grooves which imitate the spiral caused by a rifled barrel while utilizing a smooth bore barrel.

A new and novel non-lethal pellet shaped marking round for use with air rifles or air pistols, which utilizes the technology and ballistics of a bullet-shaped pellet projectile, and is designed to travel through a rifled barrel or a polygonal rifling barrel. Also disclosed is a novel non-lethal marking round pellet designed with grooves which imitate the spiral caused by a rifled barrel while utilizing a smooth bore barrel.

A non-pyrotechnic aerial display apparatus may include a head portion and a wing portion. The head portion may include a front portion, a rear portion, and a plurality of channels extending from the front portion toward the rear portion. The wing portion may extend rearward from the head portion. The wing portion may include a top surface, a bottom surface, a leading edge, a trailing edge, a rear edge extending from the leading edge to the trailing edge, and an airfoil extending along the leading edge. The wing portion may include a counterweight. The apparatus may include one or more forward-facing lights. The apparatus may include one or more rearward-facing lights. Other examples may be described and claimed.