Oops, it doesn't look like 'nylon day' is a national day..

Other days

comfy

Comfy Day
artists

Artists Day
bounce

Bounce Day
eat what you want

Eat What You Want Day
pick me

Pick Me Day
prosecco

Prosecco Day
coffee

Coffee Day
kiss a ginger

Kiss A Ginger Day
gallery

Gallery Day
bubble bath

Bubble Bath Day