Nothing special is needed.
-Wrapping paper or normal paper (Outside)
-Some thick paper, cardstock (For the inside)
-Box cutter and scissors
-Glue or tape
*Ribbons, bows, etc (for decoration)
This box does not literally explode, it just falls open. Yeah, just killed all the excitement :[
Step 1: Cutting
Cut with a box cutter, your teeth, or a spoon if you have the skills.
Dimensions are vague because you can make this box any size imaginable, depending on how much cardboard you have.
Step 2: Wrapping
Step 3: X
You can adjust the size by trimming to how much you want the wrapping paper to be exposed.
Be sure that the middle square is the EXACT same size as one of the wrapped squares or else the sides will not fall correctly.
The image below should clarify.
Cut out the cross following the red lines.
After having the cross cut out, crease the gray lines(shown below).
Step 4: Coming Together
If everything is going well these should fold up and fall down.