This funny moustache t shirt features the slogan this is my moustache there are many like it but this one is mine this is part of the motto which the usmi united states moustache infantry learn as part of their drills which also includes the lines my moustache is my best friend it is my life i must master it as i must master my life without me my moustache is useless without my moustache i am useless recruits are even told to give their moustache a girls name 100 cotton t shirt