What I do with old Macs from 2001-2007

The thing that I do with old macs that don't work is I put
them in my collection of Macs that I started 2 years ago with the first mac in the collection a 2006 MacBook 13
inch screen. 
I sometimes take them apart to try to get them working again just for different things like holding pictures, music, videos and using the older mac operating systems. The oldest operating system from apple that I use is 10.2 (Jaguar) and the newest operating system from apple that I use is 10.11 (El Capitan) and the newest computer in the collection is 2 2007 MacBook Pro 15 inch screen.