Where's me keys, where's me phone?!!

So this morning i spent half an hour looking for my mobile, literally turned the house upside down and as my house phone is barred from calling mobiles so I couldn't even ring it. So iv come to the conclusion that somebody needs to invent a device that allows you to press a button and it calls your phone. I know they have invented a keychain you attach to your keys and when you whistle it makes a noise which is all very well if you can whistle unlike me who resulted In trying a High pitch scream. So if anyone wants to create this I would defo purchase. For everyone's information i finally found it in the washing machine in guessing Alfie was playing hide and seek with mummy's iPhone. The iPhone won!