If you got some art in you. You may as well craft your own Gift card. It really does the trick. It's something small, but you made it yourself, showing that you care. Also come up with a silly funny (silly in the cute way) birthday phrase so it shows your originality, you know something like: "Look at the bright side, getting older is better than dying". If you can't come up with something like that, perhaps search some phrases of that sort in the internet. This is just an idea, but I think it sounds like a good idea. If you think it's too much, then yeah some neat candy with an industrial card and a very Simple, yet classy decoration will make the trick.
Hope some of this inspires you to come up with something!
