I wanted Toto's tail to be kinda perky. The pattern called for batting; but after I stuffed it full, I realized it would droop from the weight of the fiberfill.
Wire from my garden (scavenged off a dead tree...) saved the day!
I bent it roughly in half & wedged the bent end in around the filler.
The outer pieces I bent at roughly 90° angles. I then stitched those into the seam allowances above and below the tail attachment.
I also wired the ears in a similar fashion.
(our completed costume here)