Fun stroy about bows and arrows:
On the way to Heroes Con I was spotted on the train platforms with my full gear. At the next stop I was approached by cops who took what I had VERY seriously. Being dressed the way I was too I looked pretty damn dangerous to them. They checked me out and okayed me in the following ways:
I didn't use any arrow heads from the show. I took pencil top erasers and sprayed them with some chrome collared spraypaint. I put these on my wooden dowel rod arrows (painted of course) and just had nocks and fletches glued on. My arm arrows were glue-gunned into the arm quiver, and of course all arrows had the pencil tips. I was very convencing, but, also safer.
If you go to a con, make sure you keep ANY tips only for photo shoots. Think of this way: even with the arm arrowheads sanded WAY DOWN you still could really cut someone with them. Not cool.
I thought about, and never got to, making those arm arrows out of paper foam and exacto knife cutting skills to make very convincing foam ones.
The bow isn't to much a problem so long as you tote it with you and NEVER drawl but for a photo with anyone around you.