I'm with you on the smell of enamels; I started out as a kid building model planes (1/72 jets, mostly), and the smell of the small tins of Revell enamels still brings back all kinds of warm, fuzzy memories.
Likewise, I still miss the smell of the Citadel paints in the soft hex-shaped flip-top pots fromt he early nineties. Those had a very particular smell, which was actually quite pleasant (not at all like the later citadel paints, which have become nastier and nastier IMHO). Those paints were made by Coat d'Arms I believe, but I haven't had the pleasure of buying from them directly to check if the smell is still the same...
I also associate the smell of Revell Contacta glue with hobbby time. I've used that brand since I was 10 or so, and it still hasn't let me down. In messy tubes at first, but the past 10 years or so in the needle bottles exclusively. To this day I don't know if the smell triggers association with building models, or if it simply is addictive though...

And then there is the smell of pewter of course. The way the acids on the skin interact with the metal gives off a very distinct smell, that will linger on the skin of your fingertips too. I love that smell. It can also be sensed when sawing or cutting metal miniatures. Gotta love the metal!
...But I'm starting to worry whether this might spur a binge in buying their stuff and other laser-cut products! 
That's easy; don't binge buy, but buy them one at a time, so you keep getting freshly cut kits. that way the smell will not be faded when you open a new package...

The lasercut smell hasn't grown on me yet though. I find it a bit too sharp in the back of the throat at times. But faded a bit, it's not unpleasant I guess. that's why I let mine breathe a bit before I start working on them.
And just let that sink in for a bit; we're talking about toxic and burn fumes as if they were good wines. Maybe that plastic cement does more dainbramage than we thought...
