How tall?

Kayla's nickname is Peanut.  She has been on the small side from day one, and may always be petite.  We were talking about her growing and she said "I want to be as tall as the jelly".  I had no idea what that meant!  When I asked, she said she meant the jelly in the fridge.  I looked, and it's on the top shelf (where she can't reach it), so she's using that as her goal!