Even more fun: 王を往々覆う (おう を おうおう おおう)
Also, the word 大祖父 is pronounced おおおおじ according to jisho.org (rikai-kun is saying だいそふ, which seems a tad easier).
Back in days of yore, I asked a similar question to this, using the example sentence 心を食べます – Koichi recorded himself saying it and uploaded it so I could listen. That was pretty awesome. Unfortunately, I’m almost certain that was on the old forum, which is now no more. Is there some way I might still be able to access that, I’m wondering? It could still be on TextFugu’s servers, and I’m sure there’s a way to see all the media that’s been uploaded to site (remember doing it before but I can’t remember how and it was a long time ago).