Here’s some text from Consequence of Sound: 

Everyone deals with death in their own personal way, but psych-rock outfit Crystal Antlers offers a unique perspective on the topic in their music video for “Dog Days”. In said clip, a group of friends commemorate a dead friend by carrying around his/her ashes in various cups and cookie jars, as if said friend is still “one of the guys.” For a final tribute, they channel the Vikings by setting up a funeral pyre and spreading the friend’s ashes throughout the woods.

The song is called Dog Days. Find Crystal Antlers’ website here.