'We got a 20-pound box of bacon' - 13 people reveal their worst wedding gifts

Buying the perfect wedding gift is a science. The formula calls for exact measurements of thought, practicality, and humor.

If you fail, the internet will make sure you never forget.

We scrolled through three wedding gift forums on Weddingbee, Reddit, and DISboards and plucked out the most bizarre gifts.

If you have a wedding coming up, treat this as guide to what not to buy.