EPISODE I: THE PHANTOM MENACE
Feeling hungry? Well, you are in luck. This is probably the easiest prop in the entirety of the Star Wars universe to reproduce. They are simply the cap from a Staedtler Liquid Roller Point Pen with a 7/16" diameter hemisphere, available through Engineering Models, Inc., capping the open end. The whole thing was then painted either a silver, a gold/ brass, or copper color.
Staedtler Liquid Roller Point Pen
That is it... Clip them on your Jedi belt as in the photos below and you are set!
Three Jedi are seen carrying food pellet capsules in Episode I.
Qui-Gon : 12 silver
Obi-Wan : 8 gold and 4 silver
Anakin : 3 gold, 3 copper, and 3 silver