You will need 

Lego 

Small mirrors

A torch

Lego person

Method 

Set up your maze using your Lego. 

Place your mirrors where you think you will need to reflect the light. 

Put your Lego person at the end of your maze and your torch at the start. 

Turn on your torch. 

Does the light reflect all the way to your Lego person? 

Have a go at changing the layout of your maze.