Whoever said sarcasm is the lowest form of wit had not yet encountered toilet humour. People who are conservative with design in the rest of their house often allow their imaginations to run wild in their toilets, sticking up postcards and below-the-belt jokes, and sometimes even going as far as creating novelty toilets. Portable toilets are no exemption, often being used as the punch line to a bad practical joke. It’s surprising how often people have unleashed their imaginations onto the blank canvas of a porcelain or plastic toilet.
Rainbow toilet
Forget the bright seat warmers and patterned toilet paper: one Flickr user posted up a picture of a toilet with all four walls completely covered in 
pictures; she called her mother’s novelty toilet ‘possibly the most colourful toilet in Suffolk (UK)’.
Gents
The urinal is watching you
Going to the little boy’s room at the office does not offer much in the way of excitement; the same bland walls that 
stare at you while you are at your desk, stare at you while you are in the loo. Yet, an anonymous designer decided to spice things up with his novelty toilets that give the men visiting them some welcome attention. A long poster above the urinals stretches across the wall depicting the top half of various women’s body’s. Some are taking photos, while others look shocked, surprised and amazed. If you’re looking for an ego boost a couple of times a day, this design is worth looking into.
Instruments for basic needs
If you’re a fan of the symphony orchestra, you may appreciate the trumpet-shaped urinal. Visually it looks exactly like the brass instrument, except that it’s attached to the floor and wall with pipes and the sound coming out of this novelty toilet invention won’t be quite the same as it is in a brass band.
What happened to R2-D2?
Another novelty toilet is for all you Star wars fans. This looks exactly like a robot complete with two arms extended to offer assistance if you require it. The extended plastic arms, however, are bound to be more distracting than anything else. If you’re more of a horror movie fan, you may prefer the novelty toilet that comes with painted evil eyes, teeth and a bloody mouth.
Ladies 
For some reason, there are far more novelty toilets geared towards men, but there is 
always something for the ladies. If you think you may be a living cliché, you’ll enjoy the fluffy pink toilet seat and nearby magazine holder (for you to reach for your cosmopolitan or vogue easily) in this novelty toilet. It also provides a shelf for your pink cocktail or glass of white wine.
These are the more conservative of the novelty toilets; one inventor decided it would be a good idea to put two toilets side-by-side with a ladies sign above the one and gents above the other, for the needier couple. However, you may want to leave the novelty toilet and stick to long walks on the beach for the relationship side of things.