Of course it is being done with plastic canvas.
I had taken 2 nos. of plastic canvas full sheet.
cut down as 4 parts with the 2nd one.
Done designs in one of the big cut out sheet.
This is the front portion for the holder.
Then join the 3 stripes with 3 sides of the canvas in which the design was done.
It will look like after adding the 3 strips with the design done canvas.
Now join this with the big sheet in 3 sides.
Now the envelop holder is ready.
Do the border design with the back sheet also
So this is the envelop holder.
This can be hang on a wall so that we can store our envelops in this holder.