Step 1: Get Your Stuff
I chose a white cardboard, but any color will do. You can get creative with what's printed on the cardboard and incorporate it into your design.
> Paper (To make a sketch of what you're going to cut out)
> Frame (To hang your work. If your cardboard is small you can use a photo frame to display it)
> Glue (If you're going to make a cardboard frame)
> Ruler (To make straight cuts)
Step 2: Pick Your Design and Sketch It!
Remember that you can't have gradients or shades, only solid figures because you're going to cut them out.
I recommend making a sketch in a piece of paper and filling in with black (or any color) the parts that you're going to cut out.
Step 3: Draw Your Design Into the Cardboard
Step 4: Cut, Cut, Cut.
Be careful and ask for help if you need to. Take it easy on the details.
Step 5: Tear the Upper Layer Off!
Proceed carefully when working around details.
Step 6: Time to Get Creative!
I added a contrasting cardboard decoration to the sides.
Remember that you can do it any size you want and as complex as you want to! The possibilities are endless.