If u have a Ti(obviously),then first i think u need to get it
Rooted (sometimes stock recovery does it too)in order to extract a widget that came preinstalled,then after u root it,use root explorer to go to system/app and then look out for the widget.apk's ..
Similarly,for the icons,look for the app in system/app(using root explorer, and then copy the .apk to ur sd card,put the file on ur desktop,rename it as a zip file,extract it .
Then go to the folder called res,then drawable-hdpi and all icons will be there in .png format.
But all this is useless if u havent got it rooted,because I think u wouldn't risk to lose warranty on such a phone..
Hope this helps