Helpful tools: foil, bowl, spoon, bottle from home with oil and water pre-mixed, crack proof container for transporting eggs, long tongs for putting oranges in fire.
Tip: scoop out oranges at home if possible and try to conserve orange innards. This process was messier and took longer than I expected. I accidentally wasted a lot of the orange juice and pulp because I didn't have a good way to save it. I'd also avoid using mini oranges since bigger oranges = bigger cakes = happy campers.