So, after not doing much at Halloween for the past few years, this year I was inspired to make a costume. I found a big plastic barrel cactus on the sidewalk the other day and I knew immediately that I had to turn it into a hat. I'll be satisfied with myself if I just wear the cactus hat around - I think with some camo clothes it'll work pretty well.
But what I really wanted to do (if I had more time and money to put into it) is get a green sweatshirt and somehow put cactus spines all over it. I haven't been able to come up with a good way to do that, though. My first thought was fuzzy pipe cleaners, but I feel like that would be too fragile for the amount of time it would take to put together. I thought about trying nails or bolts or something stiff like that, but that seems like it would be a safety hazard. Ideally I could make the spines out of some sort of soft plastic, but I'm not sure what. Zip ties maybe?
This kind of stuff isn't my forte. I'm used to building things out of wood, or metal, or clay - not found items. Does anyone have any ideas?