Mini Stationery Kit from Midori.
When everything's tucked in and zipped up, this little pouch measures just 105mm x 75mm x 40mm! It contains a tape measure, correction tape, glue tape, a stapler, pen-style cutter and foldable scissors, all colour-coordinated to match the case.
Perfect to pop into your bag to have with you at all times, because you never know when its contents might come in handy. And if you're really clever, you might be able to squeeze a very small notebook in there as well!