You walk over to the pillar with '10' on it - it is the closest. The pillars drop a number the further back into the closet they go. There is a hand shape on it, and you place your hand over the impression. Immediately, the pillar becomes translucent, and you gasp in amazement! It looks like a perfect replica of you is embedded in clear plastic! After a moment, you realize it is some kind of #D projection or hologram, moving as you move.
A man's voice comes from a speaker hidden somewhere above the pillar. "You have selected age 10. You now have the ability to change your physical body and mental capabilities in any way you wish. Simply imagine what you desire, and the pillar with show you the result. You can be any ethnicity, either sex, any build, any coloration. Make yourself a genius, stay as you are, or try mild retardation. The only absolute is that you will be ten years old when this program ends. You have five minutes to make changes. At that time, all changes will become permanent. This pillar will work only once per person."
You have five minutes to experiment.