If you haven't joined Postcrossing yet, it would probably be best if you skipped this entry so as not to inspire you to send out the worst postcard! On the bright side, if you do get one, instead of thinking "what a waste of stamp," have a laugh and share some! Because there is a blogsite dedicated to bad postcards you can upload. And yes, it is literally called Bad Postcards. So next time you need a chuckle, you know where to go online.
Here are some of the postcards you will find at the site: