use the tourist map from the trip and then put the most memorable pic from it
Elmer's glue and food coloring painted on clean dry glass = Sea glass effect.
Leave as work in progress... add to design as you go (or drink) ;)
Add feet and wallpaper to a cheap bookcase
Same color glossy over matte paint.
Sprinkle drops of vanilla, orange, lemon or almond extract on return air filter to scent your entire home.
Lampshade decorated with old book pages.
Frame It. Frame Everything...
Target printed chairs
Curtains made from strips of burlap & fabric