As long as they currently hold a membership (the £35 membership as a minimum I presume, doesn't have to be STH)?You add them as a friend on your account and simply send it to them using the ticketing site. They accept the email, and download the ticket to their phones wallet. Really, really simple.
This is already in place BTW.
It sounds to me there's a few on here that won't be getting an Everton way stone, as that's probably the wrong colour too