Why not bring your bear to life by inserting a sound box into your bear.
For the little 8" bears these are put into the bear's tummy. Put round plenty of stuffing to stop it feeling hard. For a larger bear - you may like to put the sound box into one or your bear's paws.
We have song soundboxes which play a tune when pressed or we have noises such as snoring or kissing.
OR if you are choosing an animal why not get your toy to make an animal noise.
L = 5cm(2"), W = 3.5cm(1 1/2"), D = 2.5cm(1")