In reference to the silver pencil, Prismacolor makes a few different metallic colored pencils. They can be a little pricey; however, for the amount that they would get used in highlighting areas of a model, it would last forever. I think the last one I picked up was around $3.00 US. I know that isnt really a lot of money, but if you look at it like, $3.00 for a single pencil? I can seem a little crazy.