An Appealing Prank

For each slice, insert the threaded needle through one of the fruit's "corners" (where the edges of the peel meet) and out an adjacent corner, leaving a small tail of thread dangling for later.

Iinsert the needle back through the exit hole you just made and push it through to the next corner, pulling all but a small loop of thread along with it (see diagram). Continue from corner to corner until you return to the beginning, then push the needle out through the first hole you made.

Gather the 2 thread ends and carefully pull them out simultaneously; the thread will slice through the banana. Repeat the threading for as many slices as you'd like, then get ready to wow your family with this new breed of snack food.