For some objects, the cutscene before it is connected to a certain object, for some it is random. This list is a work in progress.
Objects tied to Cutscenes:
Cutscene: "Red Semaphore" Fish: Bottle (Drink,Fuel) Fuel: +2 Fuel (CONF) Drink: + at least 20 Health
Cutscene: "Plastic Bag" Object: Letter Fish out: Learn french
Cutscene: "Never Said Anything" Object: Fish out: +5 Fuel
Cutscene: "B??ch" Object: Hallocinogetic Bread Fish out: +1 (x?) Food
Cutscene: "Hibernation" Object: Brown Suitcase/Piano Fish out: ????
Cutscene: "Red Light District" Object: Cardboard Box wit hand Fish out: Steals from Inventory
Other Cutscenes: "Tiny Object" "Hey There" ="B??ch" OR "Object floating in space"->Cherries? "Yo Man" - Silver Suitcase "Red Light District"
Other objects: Silver Suitcase: get Money Small Box: +1 Battery when brought to Planet Broccoli Brown Suitcase with Piano:? Cherries: +x health?