Does it have a parking/landing page of any kind? If not you can list it on the markets for exposure Afternic Sedo GD etc. As far as a registrar for sale page most of the big ones have that option available automatically.
The domains are listed for selling on godaddy..but on the homepage.."the domain is available on godaddy auctions" message is displayed only sometimes..perhaps when godaddy is in mood..these are the domains: LondonDesserts.Com
GrammarExercises.Net
TaxAmount.Com