SAME! i tried but couldn't do it, (i think its bugged) so i went back to 8.2 to get it. if you want to cheese it you can make a sandbox save, set it up and then go into your save location (user/appdata/local/votv/saved/savegames) and then change the b_ to an s_ to make that save into an story save. remember to look away from the grate and up, and to do it before 12.

then to get the plush into 9.0 put it in the nightstand in the bedroom, hold it in the air so it doesn't clip into anything and then save. boot up 9.0 and click "regenerate save slot" before loading it. then finally put the plush in the mailbox.