I really don't think that's necessary...
I've had in my carry-on 2 PV's (including ProVari) in an eGo case, extension caps, 3 batteries, a charger, various (unfilled) toppers, about 90ml of juice, a partially-filled clearo, etc.. Even went the extra mile & labeled ziploc bags of stuff as "E-cigarette juice" & "E-cigarette supplies" just in case... Never any problems, never any leaks
In my checked bag, had some more unfilled toppers & a bunch more juice (filled & partially-filled bottles).. again, with labeled ziplocs... I was concerned about the juice in there leaking/getting crushed, so I double-bagged it with the paper towel, and even wrapped it with some "padding" (clothes & an oven mitt, LOL) & made sure it was in the center of my bag
Can't speak for partially-filled toppers, except for a top-coil clearo, which did fine
Discreet stealth vaping in the airport should be fine, if you choose.. practice your double-inhales & hold for 10 seconds.. zero vapor on the exhale.. if you were to get busted, odds are they would just tell you to stop
On plane itself is a lot riskier.. Don't do it in the bathroom! Night flights are much easier...