The A's are unveiling their promotional campaign for the 2013 season, and if you are one for progressive bobbleheads, June 29 is a date you need to circle on the calendar.

In light of the "Bernie Lean" sensation that helped power the A's to the 2012 AL West crown, the team will offer a special "Coco Lean" bobblehead, presented by NetSuite, to the first 10,000 fans attending the A's Saturday matinee against the Cardinals.

[REWIND: A's do 'Bernie Lean' in music video shoot]

Crisp looks pretty good in his lean:

But even better when he bobbles.

Check out the complete list of A's promotions and special events this season.