Wiki and others
Anything else can be found here: http://simswiki.info/wiki.php?title=Content_List:Maxis_Match under the "Hidden Maxis Items Unlocked" section.
Another website listing most of the hidden stuff: http://www.simforum.de/showthread.php?t=140049 (in this website, I will provide it in English)
Another website listing most of the hidden stuff: http://www.simforum.de/showthread.php?t=140049 (in this website, I will provide it in English)