First you are going to need a few things
16 pieces of 8 inch Duct tape strips
First you are going to cut 4 8 inch strips and put them together long top and bottom.
Next you will cover the sticky side with duct tape as well.
Now repeat the steps above.
Now you lay them on top of each other and tape every side shut except the top.
Now stuff the top and seal it shut.
You can add designs.
I did not come up with this idea. If you want more detail go to the ducttapeguru on youtube