I am going to consult with my table officers to make sure that everything is in order.
I will read a passage from House of Commons Procedure and Practice, third edition, on page 617 regarding displays, exhibits and props:
Speakers have consistently ruled that visual displays or demonstrations of any kind used by Members to illustrate their remarks or emphasize their positions are out of order. Similarly, props of any kind have always been found to be unacceptable in the Chamber. Members may hold notes in their hands, but they will be interrupted and reprimanded by the Speaker if they use papers, documents or other objects to illustrate their remarks.
I think that is the key sentence. It continues:
Exhibits have also been ruled inadmissible. During the “Flag Debate” in 1964, the Speaker had to remind Members on numerous occasions that the display of competing flag designs was not permissible. Small Canadian flags and desk flags have been disallowed. While political buttons and lapel pins have not been considered exhibits as long as they do not cause disorder, the Speaker has interrupted a division to request that certain Members remove “props” from their lapels.
My understanding of this is that if the prop sends a message, it does interrupt and disrupt. I will rule that we cannot have the buttons if they have a message that disrupts the chamber.