“Happy birthday from the cat! I put a dead mouse on your pillow and a hairball in your shoe! Have a day full of fun surprises!”
“Merry Christmas from the dog! I was going to bring you some mistletoe but I accidentally ate it. So I barfed it up on the carpet. Might eat it again later.”
Seems a little silly, I havent seen those here in Germany.
Actually they often are intentionally silly:
“Happy birthday from the cat! I put a dead mouse on your pillow and a hairball in your shoe! Have a day full of fun surprises!”
“Merry Christmas from the dog! I was going to bring you some mistletoe but I accidentally ate it. So I barfed it up on the carpet. Might eat it again later.”