Any standard cylinder or block feeder can be used respectively for those shapes. You can also use netting. Bells include some twine that can be used to hang.
The cylinders and other shapes should be protected from the rain. The rain could dissolve the gelatin. Check out our rain shields.
YES! Birds do not notice the capsaicin. They’re safe for squirrels also (and other mammals) - they just don’t like SPICY.
No - you can just order whenever you need to replace. If you do choose to subscribe, you will enjoy 10% off each subscription order.