Perhaps a Glock 26? If you put a G19 barrel on it and use a threading drill, you could adapt it for a suppressor I suppose. Not super exotic, but still a decent pocket gun none-the-less. A good suppressor adds 3-4" to the barrel though, so I'd assume the person would have to thread it on after drawing it?
I was writing a screenplay at one point (which I haven't worked on in awhile, I think I'm going to start over) and I wanted one of the killers to use a Shansi Type 17 with a barrel adapted for a suppressor. Wierd guns like that fascinate me and I like seeing something rare on the screen.
Personally I don't like the PPK pistols because I got some serious slide bite the last time I shot one. I figure a P230/232 would do the same so I'd avoid both myself.
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