When I first started (re)shooting film, one of the very first cameras I was given was a "disposable" Konica WaiWai. This crazy little super-wide lens camera came loaded with a fast Konica Centuria 800 film. Unfortunately Konica has stopped making films a few years ago so it's no longer available, but occassionally you can find them in markets or internet auctions.
When I eventually got my film developed, I was really impressed with the results. Some of the blue skies had an amazingly deep xpro-style tone to them (this effect was possibly helped by the wide lens on the camera).
The 800 speed of the film meant it was fast enough to shoot in dull conditions - dusk and grey days came out well. When under-exposed, photos were noticably grainy.