So I set up the Rainbow Dash flacon of my series of mane six flacons (I posted the ones for Twilight, Rarity, Pinkie Pie and Applejack before) up for the ocassion.
This is the rearside of the flacon, showing the cutie mark of Rainbow Dash (which I also pyrographed onto the top of the flacon’s cork though that is not visible in this image).