Nuttier than a...

I had to come up with some "crazier than a..." smilies yesterday. Here's what I ended up with:

• Loonier than a Canadian dollar.
• More out of whack than a broken paddleball.
  
• Flakier than a dandruff commercial.
• More out of kilter than a naked Irishman.
  
• Kookier than a mountain of snickerdoodles.

So what can you pull off?