Rose-tinted Spectacles

A pair of hi-tech specs which filter your view of the world, substituting all those little things that you'd rather not have to look at with something pleasanter.

For example: those garish plastic waving-cat statuettes you see in Chinese shops and takeaways, white people with dreadlocks, bill-boards advertising erotic theatre productions.

The technology would work something like this: while wearing the specs, you look at an example of whatever you want to block out and press a small button on frame. The phototechnology in the glasses takes a few seconds to focus on and record an image of the undesirable object. This image is stored in the specs' internal memory. Then, simply look at something you'd rather see instead and record an image with the glasses. The latter image will substitute the former when the spectacle's sensors lock on to it.

Ta-da! From now on, when I catch sight of a waving-cat statuette while waiting for my chicken satay, it would instantly be replaced by, say, an ornamental china figurine of a lady in tasteful period costume holding a parasol.