Where I can buy one of those old 90s halloween white lightsaber toys?

I use to see these every year as a child of the 90's it was a lightsaber that came in a bag or came with a darth vader costume and it was basically lukes lightsaber from return of the jedi only it was white and all it did was light up. I Would love to buy one of these if anyone knows where I can find them that would be great