If you are looking for straight-from-the-store "prop" swords and the like; aside from online, I have no answers for you.
However, if you are willing to spend a couple bucks - or even make one yourself, there are plenty of places to get what your looking for.
Most Dollar stores carry 'el cheap-o plastic swords that with a little imagination can be turned into plenty of cosplay worthy creations.
If you go take a look at any of Featherweights' cardboard sword tutorials, you will find a wealth of low cost sword ideas.
~Yuni's the name, Prop's & Armor are my game.~