How to find lost iPhone without Find My iPhone?

Basically, my mom took away my old iPhone (iPhone3Gs) last year. Now, I'm trying to find it, however she doesn't remember where she put it. The phone itself, however is not associated with Find My Phone which means I can't use it to find it. As well, it appears to have deleted from my devices list in my iTunes account. How to find it? Does this mean I have to turn the whole house upside down to find it?

The phone battery will not survive a year, so yes you may need to turn the house upside down. You can try logging on online via icloud.com and try the find iphone app. If it does not show up there then you will definitely need to turn the house upside down.

Well yea. You'd have to look the old fashioned way.