No, Auctiva doesn't have any example consignment agreements but if you do a search on google for "consignment agreement" there is a good amount of free and ones for a fee. Here is a small list of some of the ones I found:
http://www.4hb.com/letters/ltrconsign1.html (free)
http://www.consignment-software.com/consignment-form.htm (free)
http://www.artsandmoregallery.com/Consignment_Agreement.htm (free)
http://office.microsoft.com/en-us/templates/TC010011711033.aspx (free)
http://www.theonlineauctioncompany.com/agreement.htm (from real ebay consignee)
http://www.socrates.com/business-legal-forms/agreements-and-contracts/Consignment-Agreement.aspx ($10)
http://www.findlegalforms.com/xcart/customer/home.php?cat=1505 ($18)
http://www.allbusiness.com/sales/internet-ebay-selling-seller/2975545-1.html ($25)