Don't remember ever seeing one in Cala'n Blanes but there is definitely one in near neighbour Ciutadella in the Plaza des Born square opposite the town hall/Police station next to the obelisk. From memory I think it is held every Friday.

thank you

Just got back yesterday and thought I would let people know of a new craze in cala en blanes local teenagers in cars and on moter bikes driving around at speed throwing eggs at tourists we reported it to our hotel (vista blanes ) and they reported it to police and there was an incresed police presence that night but the next day it was happening in another area.