write your saying on paper and then outline it with thumbtacks. Looks very unique

Push Pin Art (simple AND cheap)

Gold painted jigsaw pieces on a wall

...all you need is pushpins and a canvas

Glue wooden letters onto a canvas and spray paint.

Buy a mirror. Put letter stickers on it. Paint over the whole thing. Peel off stickers.

Cool idea.

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Glue wooden letters to canvas then spray paint white or any color.

Putting fabric on a wall instead of painting

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Using pennies to decorate letters.

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DIY Wall Art from Magazines

What an amazing idea. You could do this on your deck or in the house.

Home Is Wherever I Am With You - Map Background Instead of Flowers

Easy abstract painting that anyone can do! Just blob the paint on the canvas in random spots and blend!