Cheap Reflective Panel (cardboard and Duct Tape)

In this instructable I will show you how to make a Panel to signal planes, boats, etc. 

-duct tape
-scissors 
-cardboard
-aluminum foil

Cut your piece of cardboard to 4 inches (10 1/2 centimeters) by 3 1/2 inches (9 centimeters). Now place the cardboard on the foil with the reflective side of the foil down. Then fold it like you see in the pictures. 

 Put duct tape 1/4 inch from the edges of the front of the reflective panel and fold the extra onto the backside. After that cover the back with duct tape.  

Now you can pack it in your backpack, emergency, kit etc.