 For example, NASA's restrictive policy on its employees' endorsing of products required astronauts to refer to M&M's as "candy-coated" chocolates (although the current administrator of NASA, Jim Bridenstine, argues for revising this policy).The number of successful projects is low, due to the high cost of orbital launch and of maintaining the advertisement over time.Considering that SpaceX's minimum cost for sending objects into space is already in the millions, there have not been many attempts, and fewer successful attempts.