A small simple horizontally mounted squirrel resistant bird feeder.
This device is so simple to make that it requires no specialist tools.
The bird feeding tray is held in a stationary position whilst the horizontally mounted baffle is free rotating so that a squirrel can't get a grip whilst the birds can freely enter the feeding area from the front.
Step 1: Parts
Baffle (in this case the top of a solar powered garden light, but the top half of a large bottle could be used, the larger the better).
Large metal bolt (preferably one which is longer than shown, but with not too much thread which hinders rotation).
Hexagonal nut and butterfly nut, that fit the bolt.
Several washers taped together in a drum, that fits on the bolt (this acts as a rotating bearing).
4 wall brackets (having a middle hole that fits bolt, and two small holes that fit the fixing screws).
Small feed tray (not shown till later).