If you have a good printer , here is an simple and easy way to create a personalize birthday card...
This is my son's birthday on Friday and I though that will be great if I do something original and that mark what he likes now !... well you certainly know other boys who like like it too !:
So ,search on google an image of an object that he likes or he used a lot at this time !
Use word or another program to resize the image.
print it on a cardboard card, cut it around the form , and here you go ! :