I'm about to sound out of my mind, but I want to share this story about losing a very special plushie when I was younger:
When I was younger, I had this stuffed pig, appropriately named Piggy. I have OCD, and it was really bad when I was younger, and I carried Piggy everywhere I went because if my anxiety got too bad, or if I started having a panic attack, usually petting him or smelling him calmed me down.
One day, the unthinkable happened, and I LOST PIGGY! I was a complete wreck for just days.
My mom, my actual mom, made up this fake "reincarnation spell". No we weren't Wiccans, teehee, but she made up this "spell", and got me a new pig just like my old one and performed it on him. I was maybe ten or eleven, and I knew better than to believe in magic. But, it honest to goodness made me feel better, and after that I liked the new pig almost as much as the old one.
Anyway,crazy story over. Lol. It's not really a suggestion, hehe. But, if you're little side believes in magic maybe you can make a new plushie feel more like the old one. Also, I agree with everyone and DEFINITELY wouldn't throw away the old one. I still have my tattered pig. ^.^