Friends of mine are expecting a child. They have an app to compare the current size of the baby. It has the weirdest choices:

• Wedding cake (they are always the same size? Depends on the budget right? So if you're rich your child is bigger than when you're poor, when it's the wedding cake size?)
• flat box of chocolates (always the same size? Flat child?)
• small popcorn bucket
• small pinguin (there are so many differently sized small pinguïns)
• cotton candy (last one I had was huge, I feel sorry for the woman with a child that size in their womb)
• maki
• jackfruit
• rhubarb (so it's a stick shaped child?)
• kitten (a grows the most as a kitten. They are kitten for the first year. It's like saying the size of your baby is the size of a baby.)

I have no clue what these sizes are exactly. I do know what 10cm or 20cm is.