Yes, they certainly work. Better still if you can claim whatever is in the picture as your own. When you look at it, affirm " that's mine, that's for me, " etc and the Universe will get the message you're sending out. You can do this in other ways too. You can walk round a shopping centre, car show room etc doing the same thing, or having a browse online claiming things as your own. Or you can look in a travel agent's window and say " I'm there too, " when you see a destination you like. It all helps because it all creates image stimulus which you are sending to your mind, and then you are giving it things go work with.