Someone has actually made a mini barbecue out of an Altoids tin. Not only that, they posted the instructions on Instructables so we can all make our own.
This is the kind of thing I would have loved as a kid. (Note: I also probably would have used it to burn the house down, considering my track record and tendencies. I therefore do not recommend this for Barbies unless you happen to have Fire Truck Ken with Real Flame Extinguishing Power handy.)
The teensy grill apparently works with real charcoal and will cook smores and hot dogs (“cut to size” – there’s a visual). Pretty cool.