Distinguish yourself in some way that is deserving of an honorary Ph.D. Though there is no set level of accomplishment that must be met, Donald Rubin, a professor of statistics at Harvard University, was awarded an honorary Ph.D. in May 2011. Professor Rubin has a distinguished academic career and a body of work that includes almost 350 published articles, reviews and discussions accumulated over an academic career that has spanned decades. It should also be noted that he already has one Ph.D., acquired in 1970.
Apply or nominate yourself for an honorary Ph.D. Missouri State University, for instance, takes confidential nominations. University of Berkeley requires that those seeking an honorary Ph.D. donate a minimum of $2,000 to the university to have their application considered.
Make it known to friends and colleagues that you are seeking endorsement for an honorary Ph.D. if there is a nomination process. More nominations will show the Ph.D. committee that there is community support for you as a nominee.
Wait for the announcement of who is to be awarded an honorary Ph.D. If you are not awarded an honorary degree, work on contributing more to your community and to the collection of original human knowledge. Reapply when you think you have improved your resume enough to warrant a second look.