Did you ever see a banana already sliced... inside? Make a bet at a party and entertain your guests with this... banana hack!
Step 1: The Needed Items
Besides the banana get a needle
Step 2: Find the Black Spots
Stick the needle only into the black spots (otherwise it would leave marks outside the skin). Choose as many black spots as many slices you want.
Step 3: Find the Edge and Move the Needle
Stick the needle till you will feel the skin on the other side of the banana. Then you start rotate it up and down to create the cut.
Step 4: Have Your Friend Open It
Once you set up the trick, have your buddy open the banana. Make sure you make a bet on it!