It's amazing what you can do with a roll of washi tape
This was done a few weeks back and I have been meaning to show it to everyone. It's such a simple idea, the only issue being that I would advise using a ruler, a pencil (Palomino, of course), a spirit level and a bit of patience. It only took less than ten minutes but it was worth the extra few minutes spent getting it right because it just looks...well, so much better!
Just work out roughly how big and where you want it to go, mark one corner edge, use a ruler and spirit level to get it straight vertically and horizontally and just put down tiny little pencil markers on the wall to act as guides. Cut the tape neatly with sharp scissors, and patiently stick the tape down and remember that the best bit about washi tape is that it can be removed and adjusted if you're heading off your bearings. And if you're really heading off your bearings, sit down with a cup of tea, relax and go back five minutes later. Patience, sharp scissors and four neat corners later you're done.
I was even so pleased that I put a notice up to tell everyone what it was when they came in the next day, and a small hook for the tape to hang off. We just tear little bits off and stick our notices up, then remove them when finished. Job's a good'un.
tip: washi tape can be removed from pretty much any surface but that doesn't mean you can go at it like Rambo. Peel it carefully off the wall and no paint will be hurt in the process. Rip it off and don't blame me if your paint comes too.