Writing a paper on occasion of birthday
If your advisor has had a large enough impact on his field or sub-field, it may be possible to organize a special issue in honor of his birthday. For example,
Donald DeAngelis had a special issue of Ecological Modelling dedicated to him. The first article was titled "Next-generation ecological modelling: A special issue dedicated to Donald DeAngelis on the occasion of his 70th birthday". 

The entire issue may be found here and a non-paywall press released here.