Whidden,
I wimped out and have tried the freeze-dried mealworm approach. Raising and herding live worms would have been the end of my marriage as we know it.
The jury is still out on the freezed-dried. I've tried putting them on the tray at the base of a tube feeder, and it seems like the titmice are the only birds to figure out what they are and how good they are. The cardinals, chickadees, goldfinches have ignored them so far. I *think* I saw the nuthatch eating them, but I wasn't close enough to be sure.
I also tried mixing some in with the black oil sunflower seed in the hopper feeder, but I couldn't see if they were getting eaten or flung.
On Thursday, I tried melting down some store-bought suet and mixing in a whole bunch more mealworms. The downys seem to like it, but then, they were perfectly content with the suet out of the package. Can't tell if this has been a big win.
I'm waiting to see if the other birds take more of an interest during breeding season. Bottom line: so far, I've got some happy titmice for my efforts. Stay tuned.