A rare problem

I have a problem that I'm not sure how to solve.

Wes can't tell me what he wants for his birthday. He wanted a 79 cent pot of flowers. That's it. It's the only thing he wants. We've wandered up and down the toy aisle and he looks at things, but doesn't want any of them. He said he has enough Funkeys. He and Zach have enough legoes. He has enough art supplies. He has enough clothing. ...

We've spent a while trying to teach the boys to be happy with the things we have, to not get caught up in buying things simply to buy thing, to recognize when we have enough in our home and don't need more. We've taught them to get rid of things when we bring more stuff in to the house because we have a certain amount of space and we can't just keep packing more stuff in to the house.

Apparently Wesley has reached that point. I looked in his room and he's right. They have a bookcase full of books. We get them from the Airman's Attic and we bring back the ones we no longer want. They have some board games and he likes to play them, but he doesn't want too many. They have enough DVDs and Video games. He has more then enough clothing. They have bins and bins of toys.

So what do you get for a boy turning 5 who has grasped a lesson that many adults have yet to grasp? He has *enough* and he is content with it. All he wants are some 79 cent pansies from the store so he can plant them on the window sill of his playroom. I don't want to buy him stuff just to buy him stuff, but I've been conditioned to buy a present for someone when it's their birthday. Hell, I was conditioned to buy multiple presents for someone on their birthday. What do you do when that person doesn't want anything?