"This is just... This is just soft foam and duct tape. It can't harm anyone."Role Models (2008) Choosing the right foam for your costume/prop is probably the first big choice you'll make in the process. It's important to know what you want your piece to look like and how you want it to behave when worn/used. If your foam is too thick, you lose that super important flexibility that most armor pieces need. If it's too thin, it just looks like lame painted foam. Luckily, there is a plethora of different kinds of foam available to cosplayers. Most of them come in various sizes, colors,…