Funny you should post this today Witzend.
Eldest daughter, now in her 50s, has a collection of soft toys from her childhood, one being 'Tortie' a soft tortoise.
She decided to re-stuff him and when she opened him up found he was stuffed partly with scraps of dressmaking materials. Did I recognise them?
She sent me a photo of one piece and it's typical 60s colour and pattern, so not by me as I didn't dressmake in the 60s - no time. I did make a few of their soft toys.
ps have you got an old pillow or cushion could you open up and use?