Smells like... adhesive?

Today I was linkhopping and came across Branded in the 80s, a great nostalgia site. There's a section on 8os-era stickers; most of the ones showcased weren't ones I collected (although the name Panini brings back semi-fond memories) until I read the Scratch n' Sniff posts. I *loved* scratch n' sniffs. After viewing the pictures on that site I did some surfing and found more... all those "smells" came flooding back, almost as if I had my sticker books in front of me.

For the past few months I've been wondering how to capture a scent to sniff later... not creating it like perfume, but saving the smell of an early mountain morning or the vinyl interior of a vintage VW beetle or the aroma from a certain pizza parlor. These are scents I want to keep and re-smell, but it just isn't practical (or sane!) to fly 3,000 miles to sniff some pizza, or to visit a junkyard and ask the proprietor if you can smell his Bugs. I'm sure there's a way to do it, right? Maybe not a cost-effective, simple, or reasonable way, but if someone can make stickers that still smell like pickles and cotton candy 25 years later, surely it can't be impossible!