|Phoenix picture frame|
There are even picture frames that can be customized however the consumer wants them, so they are able to have messages written on the outside of the frame to go along with whatever picture will be placed in the frame. They can write whatever they want on the frames in whatever font they want.
Without services like this, consumers would end up with a small selection of different frames, and they would not be able to customize the different options that they have available to them. Since this is not the case, there is a lot of room for customization.