To slightly up the level of a normal greeting card, we have created an exploding box with the starting letter of the person to whom it is being gifted to. It is essentially a happy birthday card in the form of a box !
As to why it is called an exploding box is because the entire thing sort of explodes out once the lid is taken off. The four sides of the box can be decorated as per one’s wish. Lots of ideas can be used like pop up cards or a knitted pouch like the one I have done using quilling paper or adding photo tags and so on.
It is a great idea to gift your loved ones. I did this for my mother and she was so overwhelmed with it which once again made me realise why i took up handmade crafting in the first place!