Addon: Vanilla Security

This addon will add things for defense and trolling to Minecraft, such as a surprise cake, a nuclear bomb, barbed wire and various different lasers

Created By YouTube: Ivan Jirb 

LASERS

Lasers and mega lasers, they are horizontal and vertical, mega lasers will kill you instantly upon interaction, when normal ones will cause great damage.

Barbed wire will also cause damage 
THE SURPRISE CAKE

The surprise cake will give you an infinite amount of food when interacting, but if you stand on it or break it, it will explode 
NUCLEAR BOMB

nuclear bomb will create a huge explosion upon interaction including negative effects and much more that you will see if you download the addon

Go to your world options and under the Experiments section, find and enable Beta APIs