Trace or draw a heart onto a cardboard scrap to make a template. Cut out with the scissors.

Figure out where to place the wall decals using your measuring tape and level. Use masking tape to mark where the hearts should go.

Trace the decal template onto the back of your contact paper. Cut out shapes over and over again until you have enough.

Peel and stick the decals in place. Start off in the middle of the wall and work your way outwards.

Smooth each decal down and repeat until done. Remove when desired.