what if i have a toy gun that really looks as if it was a real one! people would really think its real and get scared and i could hijack a plane! that is so impressive, there you go, real security
I think that if you look further into the matter toy guns that looks too much like real guns (up to the discretion of the officer) are banned as illegal firearms under law rather than TSA
Check the TSA prohibited item list at http://www.tsa.gov to see if it's prohibited. I don't believe that it is. What's potentially dangerous about a seat belt and oxygen mask?
Not a lot (except you could use the belt as a garotte...
You're more likely to get into trouble when someone thinks you stole them than from someone thinking they're dangerous. Or did you get a note signed by the crewmember with name and contact number?