Older cameras which are not able to be used should be recycled as they have recoverable materials, including gold.
Some cameras can be recycled for spare parts or are valued by collectors for posterity.
Consider gifting your old working camera to someone who would use and appreciate it.
Check out creative ideas online for reusing camera parts in art and craft works, and jewellery items.
Plastic camera cases and metal components do not biodegrade easily. Please keep from landfill.