A machine particularly adapted for dispensing light items (19) packaged in symmetrical, frustum-shaped containers. The items are propelled through a tubular cartridge (3) by compressed air, and in the absence of any solid pushing, pulling or carrying device, then individually dispensed. A flow of compressed air generated by a blower (28) is s fed to the back of the cartridge. The items are dispensed under control of a toggling dual-gate mechanism (26, 27) at the front end of the cartridge. The dual-gate mechanism of a removable magazine (2) grouping a number of cartridges can be selectively addressed and activated by means of a solenoid-driven cross-bar assembly (38).