Also, I don't actually think tits do like melons.

I'm with penelope in this instance. That line was pathetic, and completely out of keeping with the tone of the website.
More generally [SM] I believe your example #1 shows the type of limerick many of us prefer. The form may have its root in ribaldry, but there's a clear market for amusing rhymes and syllabic dexterity rather than innuendo.

*waves from Strasbourg* Well, I've emerged victorious from my part 1 exams - what are we all up to this weekend?

I'll be drumming at this event on Saturday. Have spent this morning sanding down a batch of new bachi.

My son turns 16 tomorrow ("arrrghhh, not more fireworks, Dad!!!!"). Having family & friends round on Sunday to celebrate. Can't do tomorrow as it's the school open day.
Next Friday is more interesting, as I'll be playing The Last Post, alone, at Beaumont Leys Shopping Centre (which covers 7 acres (2.8ha), as I presume you've never been). Never played it in public before, so I'm somewhat "bricking it".