Paper boxes used for the walls as art. Affordable wall art, unique wall display, ways to decorate your home. You can also use art canvas and cut out a pattern from behind it with a repetitive stenciled pattern
Tried TAPING balloons to wall as in someone else& pin and it was an EPIC FAILURE. Love the idea of balloons tho because balloons + kids = :-D. Will try helium balloons on strings n hope for better luck!