Hi
@Lulu9101112 ,
What I do is use the cap from the new needle to shield the old.
The fastclix lancet drums are easy, they shield themselves on removal.
There is usually a small receptical in a spare sturdy pocket of my bag to put these till I get home & can dispose of properly.
I've also used the paper bag some of the smaller stuff like my Mobile cartriges were dispensed in? Which hold them together till I get back..
I've flown many times & sharps are a concern for airport security owing to passenger & flight crew safety. (It's times we live in.) However, medical sharps are acceptable in the cabin on a flight.
Security won't bat an eyelid regarding your Diabetes supplies..
Lol, I've traveled to gigs in the past with three other dodgy looking long haired geezers. They have searched us for a lot of "stuff," swabbed for explosives & even had a pair of plyers confiscated.
But my meds & ascociated paraphernalia has always been fine.