I've no idea how to *use* a smoker,
but I absolutely love smoked cheese, and I also love smoked Tofu (though I doubt that'd be on most peoples lists..), smoked fish - salmon or trout... or any oily fish is fantastic!
I've bought smoked garlic from sainsburies, which tastes great, and I also now regularly buy Maldon Salt companies smoked sea salt - which adds a lovely light flavour to anything you use it with.

If you look around your deli and smarter supermarkets, you might get some great ideas to experiment with?

Smoked duck breast sounds simply yum! In fact I expect a lot of game would work well treated in a similar fashion.

Does the smoker sorta dry and preserve stuff, or does it just flavour?

Be interested to know how you get on...?