/cgl/ - Cosplay & EGL

Here's a bit of a pleb-question, but I'm pretty new when it comes to cosplay in general.

I bought a toy sword to test if I could make it work. Other than a hole on the hilt after gutting out the electronics, which I'm fairly sure I can fill up, the biggest issue was that it didn't come with a scabbard. Having scabbards is pretty important part of the costume. What material should I try to make it from and how can I make sure it stays together, and won't fall apart when it's strapped to my back. Is cartboard okay, or should I try something different.

tl;dr: How do I make scabbards, or should I try to find different swords?