Processing olives

[mazandcol]

Hi everyone, I'm not sure if this query should be in Gardening or Food so I'll post it twice.

We have two olive trees in containers in our courtyard which are full of olives - some now black. I'd like to try processing some myself, and I've found several techniques on-line but just can't decide which to use. Has anyone here ever done their own olives with success, and if so, what did you do?