How to Train your Dragon Birthday Boy Card. Prepare for high-flying adventures with Hiccup, Toothless and the rest of the clan with the third film instalment by DreamWorks: How to Train your Dragon The Hidden World. Danilo are delighted to be able to offer the official greeting card range for this epic film and TV franchise. Included in the range is this How To Train Your Dragon Birthday Boy Card with colourful cover featuring neon and silver foil finishes. The inside of the card features vibrant imagery and there is plenty of space to write your own personal message. Order your official How To Train Your Dragon Birthday Boy Card today and receive postage plus there is same working day dispatch on orders placed by 2pm Monday to Friday.