Shoebox Solar Oven

I made this solar oven from nothing but:

a shoebox (with lid attached, not removavel),
an old winter shirt,
a plastic bag,
some black paper,
two pencils,
and alluminium foil.

Step 1: The Lid

Cut the lid like the image.

Step 2: The ''glass"

To do the glass put some air in the bag and seal it. Now bend it in half and remove some air until it gets about 2cm thick.
Then glue it to the shoebox like the image.

Step 3: The Insulation

To insulate the oven, cut the shirt and line the inside of the box with it. Next do the same with the black paper.

Step 4: The ''mirror''

To do the mirror line the inside of the lid with alluminium foil.

Step 5: The Adjuster

To the adjuster glue two pencils and put one of the throw the shoebox's hole. Use it to adjust the mirror  to reflect the sun to the oven.