Cut the edges of the sliced bread ( the edges burn easily in the oven, its better to not have them)
Mix the cans of tuna with about 2-3 spoons of mayonaise (it depends on how much you like) Mix in the can of corn.
Fill the each piece of bread with about 3 spoons of the already prepared tuna and roll up each of them.
Finally Put them in a non stick oven safe pan, space them out evenly
Bake for about 10-15 minutes or until the bread is a nice golden brown.