These are so fun!  Our 8x8 square wall tiles hang easily with no hardware.  Just pull the tab off the back & gently press on your wall.  They stick!  If you want to change where they're displayed, just pull off & re-stick.  You can display them vertically, horizontal, at an angle, there are no rules with these.  So be a rule breaker & display them however you want, wherever you want.