Chemistry Lab Alternatives?

I am trying to plan a calorimetry lab for my high school chemistry class, and classically the lab is performed by burning a peanut under a can of water, and calculating the change in water temperature to give the energy in a peanut.

Peanuts work well because their oil burns well so the peanuts burn almost completely. I want all of my labs to be equally accessible to all students, and am trying to come up with alternatives that would still give good results. Sunflower seeds also have a good deal of oil to them, so I'm thinking they might be a good replacement.

Any thoughts or suggestions?