First buy your fabric.
Then make a pattern to fit the size of plushie you need. [NB smaller is actually more difficult]
Pin and cut out sections making sure you have as many doubles as you need.
Sew each section together and stuff lightly with filling.
Assemble the head pieces.
Ears and flames.
And tail with flame.
Take great care with the layers of the eyes and test them against the head to check size. ]
Sew on the three dark lines - I used embroidery thread and needle as it has a bigger eye.
The thread is made up of six individual threads, I found two worked best for me.
And sew the head on with an upholstery needle [very long] and make sure it’s secure.
Best of luck making your own for that special somebody.