Hey Melizzard i hope this response isn't too late but I just did exactly as you have suggested. I am in Australia and would imagine the security is a bit more relaxed, could be wrong though. I took it on domestic flights from Sydney to Perth and back. Spent the christmas with the whole family all at my brothers house, the PD was a neccessity On the way over i had the PD, cup, walwart and oil in the original PD box then had it wrapped in christmas wrapping paper as if it was a present (hehehe as if i'd give away my PD ). No christmas wrapping coming home! Very clean stem in ziplock bags with toothbrush, paste, mouthwash etc. All in my checked luggage. I did seal the PD with a foodsaver vaccum sealer on the way over but just ziplock gladbags coming home. You only really need 1 stem if it's only you. 1 did me fine with 2 people. No dramas at all. I was not overly concerned. I could have easily mailed it beforehand, but that would have mean't i was without my PD for far too long and i didn't trust the christmas postal system with such a precious item! Oh and my brother loved the PD!