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		 I don't know if it is still available, but I use something called Gick Crafts 
Holographic gold glitter #87-148.  It is very small and seems ideal (not to chinchy looking).   I sprinkle it on slowly by rubbing a bit between my fingertips several inches above the plug while the paint is still wet, then epoxy over it. 
		
		
		
		
		
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