Make ovals. Tint 12 oz. fondant gray. Use fondant roller with blue guide rings to roll out gray fondant 1/16 in. thick. Use straight edge of third smallest (1 5/8 in.) and second smallest (1 1/4 in.) oval cut-outs to cut 104 ovals each. Use pink, blue and violet food color spray to randomly spray ovals. Let dry, about 5 minutes.
Use silver food color spray to over spray colored ovals. Let dry, about 5 minutes.