Ok well we've got 'izzie' and 'Tamzyn'
Izzie - 
Izzie Wizzie
Izz Wizz
Skinny Minny
Sweet Pea
Tamzyn - 
Tamzy Wamzy
Chunky Monkey
Cup Cake
Tamzyn the destroyer
Do you get the feeling that Tamzyn is the chubby one......?????
Also the pain in the butt!!!!
