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

Other days

camera

Camera Day

gum

Gum Day

Me Day

bonang

Bonang Day

believe

Believe Day

comfy

Comfy Day

chocolate milkshake

Chocolate Milkshake Day

hiv awareness

Hiv Awareness Day

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day

one

One Day