Get an old wire coat hanger, form it into a circle, put a hard hair pin curve just in the ends of it. So you can clasp it together to complete the loop. Sharpen one of the points into a sharp point. When you kill small game, you can run that sharp point between the achilis tendon and the leg and then just thread them on to it. Then just clasp it to your belt loop or clasp it shut and carry it.
I can remember carrying this thing when I was too young to shoot squirrels, but you can bet id carry them things all the way home proud as a peacock in my dads footsteps.