Isn't this a nice idea for brightening up a dark wall?
These colourful, graphic designs are the work of Mojca Dolinar and Marko Durini, AKA Durido, a new design company based Ljubljana, Slovenia.
Abi has an incredible Grayson Perry scarf, a souvenir from an exhibition, in a big frame on a wall). There are other places that sell these bars in different sizes, or perhaps Durida can custom-make. If you're handy, you might want to make your own (there are instructions here).
Veering from interiors for a moment, they also run a fine line in these sweet t-shirts.
You can find them at: Etsy.com/shop/DURIDO