Of course you will all have bought your Happy Father's Day bunting from me (!) but you will also need a card and if you haven't got one, and you have little ones, you might like to get them to do this.
First of all grab a piece of paper or card and fold it in half. Then draw round their hand.
Then ask your child to think of five lovely things about their dad and either they can write them on the fingers or if they are too small you could write them. You could always just write High 5 on it or something far wittier?
That's it - then simply hand him the card (geddit hand him the card!).