TxMaxxMedic,
I used something like this some years ago flying ducted fan jets when I lived in Texas (25 years in Clear Lake/Friendswood area, 12 miles south of south of Houston). I used peppermint and would also add extra Klotz oil to get a good smoke trail. The smoke trail and the smell would get people's attention. Besides, my wife appreciated a change in the "odor" when I would come home from a day of flying.

I'm finishing the assembly of a 1/4 scale, Hanger 9, Taylorcraft powered by an OS 160 FX (2-stroke) with a Slimline smoke muffler and smoke pump system.
Since this is a sweet plane, I thought it needed a sweet smell to go along with it.