Found this on Etsy. Nothing's better than a Velociraptor in a jar! Follow the link to read the seller's description and history of the Velociraptor. This kind of item brings me back to The Lost World or even The Time Machine. Not terribly Steampunk, but something a Victorian scientist would faun over.
http://www.etsy.com/listing/32208755/velociraptor-specimen-jar-necklace?ref=sr_list_1&ga_search_query=steampunk%2Bvelociraptor&ga_search_type=handmade&ga_shopname=biggreenbeacon
Trevor's Rating of Velociraptor Specimen Jar Necklace: 80%