Add dates,dark chocolate,nuts,peanut butter,oats in mixer and mix them.Then save some of the mixed nuts in a dish.
Now you can add strawberries.In that face you can have two different balls. One with strawberries(should be kept in refrigerator) another one without strawberries that you can keep them in room temperature.Texture should be sticky.
At the end make small or medium balls. Also you can roll them in coconut powder or pistachio powder.