Mash a snickers bar in your hand, reach under the next stall and ask for tissue.
2. Comment "Pooh, who did that?" 
3. Complement people on their shoes. 
4. Introduce yourself to the person in the next stall. Strike up a conversation.
5. Provide 'strenuous' sound-effects. 
6. Ask the person in the next stall if there's anything swimming in their bowl.
7. Discuss the pros and cons of laxatives
8.Leave a fried egg floating in the bowl. 
9. Run in, yelling "Free Willy!" 
10. Drop a cantaloupe in the bowl and sigh with relief
11. Ask whether anyone can see your pet sewer rat/river python. 
12. Say, "Hmmm, I've never seen that colour before."
13. Say, "Uh oh, I knew I shouldn't have put my lips on that.
14. Put cling-film (Glad Wrap) over the toilet bowl.
15. Drop a marble and say, "Oh <deleted>! My glass eye!"
 

Zoom kit

 

16 hours ago, roo860 said:

 

Name them all?

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If you hold a coconut shell up to your ear,
you can hear the sound of a horse standing still

I made a ventriloquist dummy out of old bits of carpet.

It was ruggish.