Kotobukiya Light-Up LED Blade

Kotobukiya came out with these awesome light up LED blades for their figures, but they work with other figures too. These currently come in three colors: Red, Blue, and Green. As great as these are for photography, there's no way to change the battery. :/ So once it dies, you have to buy a new one. It should be okay as long as you don't have it on for long periods of time. I only turn mine on when I'm using it in pictures, which only takes a minute or two. These sell for about $15 a pop, so use them wisely. One to thing to note is that the hilt is too thin to fit securely in a Bandai model kit's hand, but you and fix this by wrapping tape around the hilt to add more width. It's hard to tell by the photo, but these light up really well, and the light travels through the whole blade, giving it a really cool look.

You guys can probably guess exactly which figure I had in mind when I bought this.