How about balloons, I inhaled some of that.... in a shop on Bourbon Street in NO. The guy told me it would have an effect on my physiology... and it did. It was a very slippery slope walking back into the street after that.
Of course that was when I was young and foolish, now I'm no longer that young.
And what about a Pez dispenser? They deliver a sugar "high" to little kids.