Some cosplay help?

[Socially Awkward Cassbutt]

Umm...I usually don't like asking for help about things like this,but I'm sort of in a hurry.
I have made them,but I want to know how to make some sturdy cosplay props.They are Axel's chakrams and Reno's EMR.
Now,I don't have ALOT of money,but i can splurge her and there,and keep in mind,I don't have many sources...

I was just hoping someone would know any good instructions for me so I can make chakrams and an EMR that are sturdy(won't break) and light(because I'm very lazy and if I'm carrying them around at a con,I don't want to keep having others carry them for me).  

[Sakuya794]

Wonderflex, I think it's called, works wonders for weapons. It's light and stiff when it's not heated. It flexes and attaches to itself easily when heated and it's non toxic.