Here is something fun for your friends to entertain themselves with whilst they are waiting for you to answer your front door, the The Doormat Scales.
Sounds like a fun idea, mind you if you put one of these Doormat Scales at your front door your friends will either start using your back door, or stop visiting you altogether.
If you want a set of these fun 
Doormat Scales they are available from Curiosite, although we couldnt work out how much they were.
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