If you’re a person who tends to loose your keys all the time even when you’re at home, there is a simple remedy to that, which is to have a proper key holder. This is where the Sparrow Keychain comes in, where it doubles up as a whistle in time of need. Of course it will not chirp just like a sparrow, but at least it can alert others around you. Of course, you can always hook the sparrow and keys into the mini wall-mounted birdhouse, all for a mere £9.99. Just do not forget to take it with you when you leave the house!