Ping Penguin

We decided to reduce the waste and frustration when personal stuff gets left behind, and somebody finds it but doesn't know who owns it. So we have launched pingpenguin - an online service selling fun personalised stickers. They show your name and a picture of your face to get stuff back to you if you're still nearby. Otherwise, scanning the QR code brings up the contact details you want to share. The stickers are durable, waterproof, and come in 2 sizes. No app is needed.