Suet is easy to make. Here's my recipe:
1 cup lard
1 cup crunchy peanut butter
1 cup oatmeal
2 cups unsalted sunflower seeds, shelled
1 cup flaxseed meal or yellow cornmeal
1/2 cup raisins
Melt the lard and peanut butter in a large saucepan, and mix in the other ingredients. Spoon into molds (I used the bottom 2 inches of plastic cups), press the mix together, and freeze. Sometimes, I also press the mix into pinecones.
When the suet was frozen and out of the molds, I made a hole with a skinny nail through the center of each one, then threaded a thin wire through the hole, and hung them in a tree near our feeder, where the birds were sure to notice them.
It's always nice when your cooking is appreciated.
When the food is devoured and they come back for more, it's better than 5 stars on the internet.
Consider these photos visual testimonials for the suet. Make of it what you will.
Of course, there's Winterberry for desert.