Crackers are ground or crushed and mixed with little butter (like dough with sweet sausage). Mix the chopped bacon, chopped olives, cream and cheese. Spread the dough from crackers, smeared with filling, turn on a roll and leave in the fridge to harden. Another option is to mix all products without bacon or olive and become as savory balls with filling (bacon or olive). Or everything is mixed and is made of bites.