I walked around my class one day smelling like melon. I discovered the shampoo I picked up at the two-for-one sale was "watermelon scented."
When we were in grade school, melon head meant being a total idiot. It was very hard to get rid of the scent.
Silk gourd is, however, an exception. It has a classic look - like a smart gentleman wearing striped suit. I can picture a silk gourd saying, "my name is Bond, James Bond." So cool.