In some cases — Images 2 and 10 in particular — it's hard to believe these walls aren't papered. In instances where the person didn't use a stencil, as in the first image, the variations and paint strokes only add to the charm.
Images: 1. Honey of a Thousand Flowers 2. Design*Sponge 3. Jen Loves Kev 4. Eline Pellinkof for Bloesem 5. Bethany Nauert for Apartment Therapy 6. Desire to Inspire 7. The Lettered Cottage 8. Gorgeous Shiny Things 9. Design*Sponge 10. Flickr user Yampuss licensed via Creative Commons