I’ll be breaking down the whole process into 3 parts for easy understanding. 

Part 1: Making the cylinder
Part2: Making the circle
(i)Calculating the diameter
(ii)Steps of construction
(iii)Joining the circle and cylinder
Part 3: Stuffing

It is a very easy to construct Bolster written in simple language. You have the flexibility to change the size which are all provided inside the PDF.

All the images and written patterns are Copyrights of the designer.