An art academy classmate of mine settled on a career with the CIA. They recruited creatives.

I met the people who owned the Havana TV station that broadcasted Jack Parr’s interview with Castro from the Havana Hilton just after the Cuban Revolution. Their TV station was nationalized by Castro, they lost everything. They settled in central Pennsylvania.

"Knowing his fascination for scuba-diving off the coast of Cuba, the CIA at one time invested in a large volume of Caribbean molluscs. The idea was to find a shell big enough to contain a lethal quantity of explosives, which would then be painted in colours lurid and bright enough to attract Castro's attention when he was underwater. Documents released under the Clinton administration confirm that this plan was considered but, like many others, did not make it far from the drawing-board. Another aborted plot related to Castro's underwater activities was for a diving-suit to be prepared for him that would be infected with a fungus that would cause a chronic and debilitating skin disease." 

MORE AT: 

theguardian 

638 ways to kill Castro 

Duncan Campbell 

Wednesday 2 August 2006 19.09 EDT

The CIA looked for creative people. My friend from art school said he steamed open envelopes but I guessed he did more than that.

They might have tried paranormal stuff to get Castro:    

Or TV hosts: