The cog wheel is a recurring item in the Submachine series, appearing in Submachines 2, 8, 9 and 10.
Submachine 2[]
The cog in Submachine 2 is a small, 13 toothed grey cog, and is used in the megaphone.
Submachine 8[]
The cog from submachine 8 is an orange 8 toothed rusty cog.
Submachine 9[]
The cog in submachine 9 is a glowing green karma-esque cog with one of eight teeth missing.
Submachine 10[]
The large and small cogs from submachine 10 are both rust orange, the smaller having 16 teeth, with the larger having 32 and an arrow on it