When I first sought suggestions for how to celebrate his birthday in this unusual time, someone suggested that I ask people to send him cards or letters. I think what he'd appreciate even more than that would be to read comments, view virtual e-cards, photos, animations or artwork shared with him online.
I'm going to take these comments and images and incorporate them into a birthday slide show for him.
If you'd like to wish him a happy birthday, you can do so in the comments on this post. Thanks!