...well, here's a story made up entirely of "shi". Good luck understanding the pinyin version! Read carefully - it does make sense!

石室诗士施氏，嗜食狮，誓食十狮。适施氏时时适市视狮。十时，适十狮适市。是时，适施氏适市。氏视是十狮，恃矢势，使是十狮逝世。氏拾是十狮尸，适石室。石室湿，氏使侍拭石室。石室拭，氏始试食是十狮尸。食时，始识是十狮尸，实十石狮尸。试释是事。
(source,explanation and background:　http://baike.baidu.com/view/19225.htm)

Anyone have similar examples of weird/interesting pieces of writing?

I've already made it a milestone for when I'm able to read this passage :)

Try this site www.yellowbridge.com/onlinelit/stonelion.php
which I think is the same story but with pinyin and Enlish alongside the Chinese. When I first read this and found 45 characters for shi in my dictionary I despaired. Then Wenlin gives me choice of 140 shi's! Bit this pales into insignificance alongside ji (262) or even li (172) - it's probably best to pretend you don't know...

Great! many thanks! My son really enjoyed that.

Very interesting!