There are a number of companies that allow people to create a variety of stick-on wall art such as murals and decals. Although there is the temptation to make wall art of family photographs, some sort of abstract design or a great view you photographed during a vacation is usually best. The photograph usually comes off as narcissistic and so is usually considered just tacky. An abstract design, however, can be made to emphasize almost any decor, allowing for pictures and other decorations. They are also easy to create once you know the theme of the room in question. The designs can be made to connect the rooms of the house. It may get a little pricey but it will be worth it.