A device with a plurality of attachments for a beverage can which enhance the aerodynamics of the beverage can, comprising a base assembly adapted for attachment to a beverage can and a nosecone adapted for attachment to a beverage can. The base assembly further comprises a basal member, a peripheral sidewall, a guide unit, a central aperture, and a plurality of stabilizing units. The basal member further comprises an inner surface configured to follow the contour of a beverage can. The inner surface of the basal member contains a central aperture. The central aperture is surrounded by a divergent thrust nozzle, which focuses the beverage contents and increases the pressure of the liquid rivulet that is released. The heightened pressure of the beverage contents increases the thrust of the rocket during launch beyond what the thrust would be in the absence of the thrust nozzle.

A method of making blocks with internally disposed magnets. Pockets for the magnets are machined into a non-extrudable material such as wood. Strong permanent magnets are disposed in the pockets to cause the faces of the block to exhibit a desired polarity magnetic field. The pockets are then sealed to permanently retain the magnets. The exterior shape of the block may be formed either prior to or subsequent to machining and sealing of the pockets.

Various implementations include aerial descent devices including a body, at least two arms, and at least two propellers. The body includes a first disc piece, a second disc piece, and a core disposed between and coupling the first disc piece to the second disc piece. The at least two arms each have a first end and a second end, and the at least two propellers are coupled to the second end of each of the at least two arms wherein the first end of each of the arms are pivotally coupled to the core of the body.