I just did a quick look to find that type of grinder.
I have seen them ship from all over, including the US, Japan and Mexico actually. You said your budget was under 100 bucks so I used that as a search criteria to see if I could find any of
these ones that sold for that cheap. Generally they are right at 100 dollars or so.
I am at work so couldn't twiddle and nail down the search for just those types, but if you do, I am sure it will bring up many of them from all over with different prices.
Again, watch the voltage on them if you buy, they also come in 220 volt.
Aaron