A friend of mine had a poem about them on the back of her toilet door.

Pelvic Poetry

To tone those muscles down below
Remember this poem when you go
When taking a visit to the loo
This is what you should do

Take a seat and start to go
Then stop and hold in mid-flow
Repeat, three or four times or more
Think of the benefits to your pelvic floor

If your in a pregnant state
Do not think you can't relate
If we don't keep up our nagging
You may find your muscles seriously sagging

By looking after your pelvic floor
The enjoyment of sex is so much more
With those muscles nice and tight
This will add to his delight

So, don't forget to stop and start
Use your head, be really smart
Continue for life and don't forget
When your old, you won't be wet.