Granted, Campfire in a Can isn’t exactly the kind of thing you can fit in a backpack. If you want to enjoy campfire that’s painless to set up and burns with the best flame, however, it’s probably one of the most compact options you’re likely to find.
Described as a portable, multi-fuel campfire, it gives you a versatile fire pit that you can use to light up the camp at night, cook marshmallows while swapping tall tales, and even grill any fish you managed to catch on the lake. Able to pack into a can the size of a bass drum (maybe a bit thicker), the whole thing should be easy enough to put in the boot of a car, making it reasonably-sized for taking to the beach and other outdoor adventures where you wouldn’t have to haul it along for long periods (obviously, hiking up a long, steep trail with this thing is gonna be rough).
Campfire in a Can is a self-contained campfire that you can fuel using wood, charcoal, or propane (heck, even a Light N Go kit should work).  When assembled, it consists of a base pedestal, a vertically-oriented fire pit that sits on top of it (the pit can also be stood directly on the ground if the camp allows it), and a grilling grate that you can lay on top of the pit if you want to do some cooking. All the parts fit inside the can during storage, so everything stays in one place, ready to be picked up for transport. With multiple holes along the pit’s body, it boasts excellent airflow and draft, leading to even heat distribution, with the upright orientation maximizing the amount of surface area that catches fire for excellent visibility.
A Kickstarter campaign is currently running for Campfire in a Can. Pledges to reserve a unit starts at $99.