While I'm at it, I'll knit our clothing too.
Actually, they use real guns, that shoot blanks, which is obviously more expensive then cheap airsoft. "Paper Mache" made me laugh though, thats the largest lack of detail, scale, areodynamic design, everything.
So ignoring the folks at paper town, according to a lot of people, the clearsoft guns can get by the CBSA fine, but others are saying it would still be a problem, and they will still take them. Not too sure the real answer.