Step 1: Get Started!
You'll need a hoodie in your chosen pony's color, fleece for the mane and tail, felt for the ears and cutie mark and some craft foam for the wings. Other useful things to have on hand are fabric glue, paper and a marker.
Step 2: The Mane
Step 4: The Tail
Next, braid the top of the tail.
Step 6: Ears
Cut two triangles out of blue fleece the size you'd like the pony ears to be. Next, cut two slightly smaller triangles out of pink felt and sew (or glue) them inside the blue triangles.