A gallery of all the fusions I've done over on my DA page. This isn't an ad for them, since every fusion will be uploaded here as they come out, but if you want to see the source, you can here: https://www.deviantart.com/krystalizedart/gallery
Right now the images are sorted by when they were created.
Looks more like a mecha arm here, but the weapon Asami tends to use is just a glove that can electrocute people. Used heavily by the non-bending Equalists in the first season, because it lets a non-bender quickly incapacitate even a bender if they can get close enough and use it, and is a lot more easy to hide than a more traditional weapon. It's also more child friendly than stabbing someone with a sword or spear.