It is simple, although in hindsight I should have used a light stabilizer or fusible webbing. Here is the how-to:
Buckle End Applique
2. Fold in half, cut corners to make an arrow shape, sew as shown on picture.
3. Turn inside out, iron in 3/8 inch on each side.
4. Fold, pin to webbing as shown.
The D-ring buckle applique:
Got a scrap piece of rectangle, ironed in the sides to match the width of the webbing. Ironed down one end to form an arrow and just simply fold and iron the other end. Fold over the D-ring buckle, making sure that the arrow is on top.....
and the straight end is covering the wrong side of the webbing. (I took a bunch of pictures, in case my explanations make little or no sense. )
Sew it on and done. Quick picture to show how the belt ends looks like from front and back.