I remember visiting this website once...
It was called Frozen-Inspired Printable Valentines - Disney Family
Here's some stuff I remembered seeing:
Send a sweet Valentine’s Day card that’ll melt the coldest heart. These adorable printable notes feature Olaf, Anna, Elsa and the rest of your favorite characters from Disney’s
Print the page on regular paper or cardstock. Cut the cards out, fill in the information and give them to classmates, friends or loved ones.
Tagged as: Anna (Frozen), Elsa (Frozen), Frozen, Olaf (Frozen), Printables, Sven (Frozen), Valentine\'s Day Cards, Valentine\'s Day Printables