If your son is ten and into baseball or fifteen and into girls and skateboarding or even 20-something and into flashy cars and climbing the career ladder, you are certain to find a custom birthday ecard for your son here. He’ll be super impressed that you know how to use the internet (because loads of kids don’t think their parents have any idea). Wish him happy birthday the modern way. You can customize his card to make it completely unique and personal. Start by finding a card that you like the look of and then change it up with your own birthday wishes. Maybe add a little anecdote about your son and then wow him by adding some photographs as well. It’s easier than you think! You can make a little tweak here and there or give your card a complete overhaul. Knock yourself out!