OMG nice! That is friggin' sweet.
The knife should be ok if it is tied down (peacebonded) into the sheath and not drawn. There may be allowances made for that in the masquerade. Even if you want to carry a sword (like the one I donated to charity) it must remain tied into the scabbard and never drawn (the tie down on my sword is still on from 3 years of cons).
The compound bow is probably a no-go unless you can rig it up not to fire. It was in their weapons policy for many years not to allow stringed bows or other projectile weapons (even squirt guns :O), but this may have changed. The NERF toys should be ok once security looks at it and cable ties the cocking mechanism and/or triggers. I can go so far as to dig up last year's policy where it's even mentioned that removing the firing pin on firearms isn't allowed - kind of redundant as it's really not allowed to carry a firearm in that environment. It's kind of funny, and then not, when people in charge of conventions assume the authority to regulate and administer stuff that isn't allowed in the first place, but I digress
As to the P90's and other such replicas - it is being addressed. I can confirm the co-head of security at the con has asked me directly for gov't law links about them to make their own decisions. I personally don't care as I am no longer part of the administration (though I've been asked to be on their charity staff but have to decline for now) but I won't be walking around with any of that stuff at any Canadian con and I recommend my friends don't either.
I have a very legitimate concern that if such P90s or other replicas are inspected, signed off and allowed by security staff - and the person holding them gets in trouble there could be issues for the con for allowing such stuff. I love costuming, I also prefer not to get shot or other consequences. This is why I recommend people to use the NERF longshot that regardless of paint job does not qualify as an illegal replica and looks quite cool and sci-fi-ish after a coat or two of Krylon.
It's funny that there is a grandfather clause for stuff made in the 80s which made the Uzi for my Snake-Eyes costume legal. But to be safe I have now gotten rid of it and other 80's toys (some of them went up in the fire making their destruction easy enough).
Please remember my information comes from working extensively for security and other duties at conventions since 1994 with also a considerable amount of knowledge pertaining to Canuck weapons laws. I care a lot about costuming and conventions but do not want to see crap happen that could have been prevented when most folks who utilize weapons in their outfits are among the most safest and responsible people I know of.
The laws suck, but if it's illegal outside of the convention it's illegal in it... I know the full brunt of that and hope no-one else has to deal with it.
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Sid, that Jayne Cobb (Firefly) & Snake-Eyes (GIJoe) costumer & member of
"Baldwin's Badasses" UAS MacDonald - A07/TQ1.0.12147E1 Rank PFC

