Here's another scrap-friendly project... catnip filled mice.
On a 5x7 notecard, I cut out a little mouse-shaped creature. From there, I used that as my pattern and cut out two pieces of my scrap fabric. With right sides touching I sewed it all around leaving a space so it could be stuffed with catnip and sewed close. I also added a tail on some of them made out of leather cording, which makes it easier to throw.
I made 10 mice with 1 oz of catnip.
Cheap project and the cats went crazy... as you can see.