Where did you get your hat? I used to wear a tophat all the time, but I was never happy with any that I found. They all tapered toward the top, instead of flaring slightly. Yours looks to be the sort that I always wanted but never could find…
Well, crap, why don’t you just ask Krispy Kreme the secret to those damned donuts everyone likes while you’re at it? 
hmm…avoiding the answer…sounds like there’s a rabbit hidden inside.
Jin, I love your hat, don’t tell!
Also, been wanting to tell you that as a computer geek, I loved the Universal Turing machine!
You could try this although it is hard to tell if the hat in the picture does what you want. Ditto for the hat’s on EBAY (I’m not sure if I’m allowed to link to the one I found.) However, at least on EBAY you can email the seller…
HTH
Hey man, I was wearing a top hat in 1986! So it’s more like a Krispy Kreme employee asking another Krispy Kreme employee how much sugar goes into this dough, again?
Wow, that’s so cool you had a top hat in 1986. 
All I had was a stupid kid named David chasing me around kindergarden and trying to kiss me all the time even though I yelled at the teacher to make him quit!
I wore my top hat in my school picture that year
You should post a picture of that one Opalcat.