Onomatopoeia-ize-ing

I wish I knew how to onomatopoeia-ize a disgusted, taken off guard, shocked, intrigued and horrified gasp. But, since I don't know how to write it, I guess I'll just have to coax it out of each of my readers with this picture of a wedding cake. On a side note, this is why facebook was created: so that you can stalk people that you are a very distant acquaintance with and get to know very personal details about their lives. Details about things like graduations and vacations and... weddings. (Sorry if by some strange reason the girl whose cake this is happens to stumble upon this post, but it's your own fault. WHAT were you thinking?)