Hi my name is ***** ***** I am happy to assist you.
These items are prohibited items as even with a security check if they are seen without knowing they are not live it will cause the area to be in a sense put on lockdown and evacuated.
I know this is not dangerous items but they are prohibited due to the threats that some that look and are the same actually have been real.
I am so sorry to give you the bad news. Please let me know if you have further questions.