We tried to do this for our FIL, but he wasn't into the idea of wearing a pin all day. He did wear it at dinner at Marakesh. The dancer came over to our table, and I think the staff sang a birthday song. It was nice, but nothing terribly exotic.
You can have a package delivered from the WDW florist. They have a webpage. They have several birthday and snack packs, but they didn't wow me, esp. for the price. Most of the treats in the baskets are just ordinary candy that you could get anywhere. I wish they were made up with Mickey cookies and candies or something. I will say that we've seen the florist delivering flowers a few times, and the floral vases were amazing!
There used to be a clittle company that did this sort of thing, it was called pixie dust wishes or somethign liekt hat, but I think maybe they no longer exist.