Okay, so I did not make a video for this as I made it up as I went along. 

But it is simple now that I have made one, simply measure the sides of your tissue box and add 3/4 inch to the top and one side

Once you have measured all 4 sides then score 1/2 inch on the top and one side cut a wedge where the score lines join. then measure the top and only add 1/4 inch to each side.

Then run your adhesive on all tabs and pray that you have your measurements right. I also cut a hole using the oval layering frameletts 

 So enjoy making your own..