Hey - this worked.
Pico bottle with an HCigar cap, just for flight.
I put it, padded with paper towel inside a film canister
View attachment 78560 but the P-towel was dry after two flights.
COULD be that I had extra "support" of stuff on top of the cap under the canister cap - but whatever, I am OK with this as a means to swap a full for an empty bottle in seconds when travelling. Pico is now road-worthy.
And a good thing - because road-warrior-Reo had a snafu at my destination!! The squonk tube just slipped right the hell off - and wouldn't stay on. Took me 15-20 minutes, to try, fail, trim it, remove the little cover things that's in the way, replace the tube, etc. So I'd have been freaking out about Reo being down if I didn't have Squeeze already up and running while I fucked around with the Reo tube.
View attachment 78561
All good now. And yeah, I vape in hotel rooms. Rental cars too. Prove it.