I went for a MUJI-esque business card holder. Some miscalculations led to a slightly messy finish, but it does do the job. It was proper rapid too, a very easy process I found.
And here's an acrylic piece of bling. Measuring 16.5cm across, it has holes either side for a leather string or metal chain to attach as a necklace, strap accessory or key holder. Haha.
