Share 'How do you get metalic goo'

Hi Guy's,   I just finished my third homemade lamp and they are turning out pretty darn good!   I love the look of the "metalic" GOO can anyone tell me how I can get that metalic look to my homemade goo?   I am using a mix of 70% bees wax and 30% parafin.   Also I have been using oil pastels to add color but it does not really take, it kind of colors some but most of the pastel stays on the botto…