In making a cake for a mechanic shop. I made the tools n bolts out of chocolate n put luster dust on to make the wrench a metallic color but seem not to b dark enough... Am I doing something wrong?

Did you mix the luster dust with vodka (or other grain alcohol) first and paint it on? Sometimes you might need to do a few coats with this method to get the concentration of colour you're looking for... at least in my experience. You do have to be careful of brush marks when doing large areas of metallic colour though. If I'm feeling particularly patient, I will paint the luster dust on to get the depth of colour I need, then use a spray metallic colour (not airbrush, but a spray can) to eliminate the brush strokes.

I made this metallic color by dying the fondant gray and then airbrushing it with silver sheen.
https://www.facebook.com/photo.php?fbid=178269695565175&set=a.148954165163395.30024.108769775848501&type=1 [url]

Dont use wodka, it doesn't work that well for larger objects.
(I find it doesn't work at all )
Use rejuvenator spirit or 96% alcohol instead. Paint two layers and leave to dry inbetween.
When completely dry, dust off all the excess with a soft brush.

I made a rock hammer and dry dusted lustre dust onto grey fondant. I find this works better than painting with vodka. Duff also makes a silver spray (you can get at Micheal's) that may be what you're looking for....

Here's the dry dusted (rock hammer) tool:
http://cakecentral.com/gallery/1989031

Has any one actually used the Duff spray products?

i made grey fondant swords but bought the wrong color luster dust! anyone have ideas to give the fondant a metallic look?