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

Other days

comfy

Comfy Day
aloxolt

Aloxolt Day
bow tie

Bow Tie Day
pumpkin

Pumpkin Day
hoodie

Hoodie Day
book

Book Day
girl friend

Girl Friend Day
bubble bath

Bubble Bath Day
coffee

Coffee Day
nail polish

Nail Polish Day