A couple I remember were;

Old mother Reily had a fine cow
To milk it to milk it she never knew how
She pulled it's tail instead of it's tit
And old mother Reily got covered in shit

Old King Cole was a merry old soul
He played with his soldiers in bed
But when he was tired of his majors and generals
He played with his privates instead

Rule Britania marmalade and jam
Five Chinese crackers up your arse hole
Bang, bang, bang, bang, bang.
Bill