The first major villains of Akira Toriyama's Dragonball Z were a group of warriors from an alien world. These villains, known as Saiyans, wore a unique armor that aided their fighting skills and protected them in battle. Saiyan armor was so useful that most of the characters in the series, even a number of humans, have worn it over the adventures detailed in the series. Later, a streamlined version of this armor was worn. It was even more flexible and useful in the many fights its wearers frequently engaged in.
Find an image of the Saiyan uniform online. Look specifically for Vegeta's later armor, the version without shoulder pads.
Trace the pattern of the "pads" on the armor onto the craft foam. The Saiyan outfit consists of a series of rectangular sections. Leave space for movement between the pieces of the abdomen padding.
Trace out the "toe" sections of the boots onto the craft foam. Cut out a third of a circle, which will be rounded at the middle to form the half-cone pointed shape of the toes.
Cut out all of the traced segments of craft foam.
Spray paint the ab and toe sections of the foam yellow. Let the painted pieces dry according to the directions on the spray paint can.
Paint the straps of the muscle shirt yellow. Block off the sections you are going to paint to keep the rest of the shirt white. Allow the painted sections to dry.
Attach the craft foam pieces to the chest and boots of your costume.
Use the black paint marker to outline and detail the armor sections of the costume. Allow the black paint to dry completely before wearing.
If you wish to build the version with shoulderpads, use more of the craft foam to create the pads by scaling up the same technique used to create the toe-caps on the boots.
Heed the warnings on the spray paint can.
Be careful when handling and using the Exacto knife.