Here is a lovely Halloween collar made by Collar Mania. It looks good on a red furred dog as well as black.  To see it on a black Dobie, take a look at Halloween-Dogs.com.  There’s a photo contest going on there and will run through October 22, 2011.  If you’re a photographer of your dogs and like Halloween, this might be for you.  Collars and a free course are the goods for prizes.  Complete rules here.