Enrichment for my 2 snakes

[Bogertophis]

I personally was wondering about the whole smell thing myself. Thanks for the info guys I will post some pics once I get everything setup in the tubs.

There ARE animals that would benefit from that sort of scent "enrichment" but what you use has to be relevant for the type of animals.
I know my snakes get visibly "inspired" by some fresh-soaked sphagnum moss to play in...that's the sort of thing that's "right up their alley".
Many snakes enjoy tunnels too...like cardboard rolls (of appropriate size) or even PVC drain pipes & elbows.