Where can I find a 100% guaranteed squirrel-proof bird feeder?

It must not have any plastic, plexiglass or wooden parts that can be reached by squirrel teeth.
Also, it must not have a locking mechanism that the squirrels can figure out and open.
Finally, those plexiglass baffles do not really work as eventually the more gymnastically gifted squirrels will learn how to stretch and flip into the seed trays.
I do put out enough feed for both, however, I am complaining about the squirrels wrecking the feeders.
Why doesn’t someone design one for crying out loud? It would be very successful!

I feel that the Yankee Flipper is probably the closest to 100%, maybe 99.9999%.

The Yankee Flipper is the hottest selling bird feeder ever made! It features a weight activated motorized perch ring that several birds can easily feed from simultaneously, but flips pesky squirrels off. Rechargeable power stick and adapter included.

Made with the finest materials available; zinc die cast top and base as well as a UV stabilized polycarbonate tube, this feeder stands up to even the harshest outdoor elements.

Jus click on the video to watch…..

Ready for Kindergarten $2.98 You are the most important teacher your child will ever have. Filled with 156 fun activities designed to equip boys and girls for school success, this unique little book can show you how to help your child lay the foundation for developing healthy friendships and a love for God. In addition, it can help you give your child a giant head start in such core subjects as math, reading, science, art, an…

Perky-Pet 7103-2 Copper Triple Tube Bird Feeder $69.99 This feeder has a heavy-duty acrylic and copper construction -allowing multiple birds to feed, but keeping squirrels out. Features include: a built-in seed funnel, an easy to remove, threaded squirrel and weather guard simplifies filling, extra large-10 pound seed capacity, a quick release seed tray, 12 feeding stations….