The g'daughter and I gooped together some homemade bird feeding thingies, made with a seed mix that included all kinds of goodies one would think the birds would like. But no. Not even the sparrows have shown any interest in our creations.
One recipe we used was from Alpha Mom and included gelatin as a binder. Most of it went into cookie cutters, which didn't work as well as I had hoped - too crumbly. I put some of the leftovers into orange halves, some into muffin liners. I have yet to see any evidence that the birds find this mixture palatable.
I have higher hopes for the peanut-butter-on-toilet-paper-rolls-rolled-in-bird-feed objects, although there is the risk that squirrels may tear these to shreds. So far, no takers there, either.
My observation is birds favor different foods in different seasons, so hopefully they will become interested in our offerings someday, before they rot.