Would you class https://en.wikipedia.org/wiki/China.....enade_launcher as interesting?

bit overused in media, its single shot progenitor is overshadowed by it

Okay (I thought that one was more obscure to be honest). I'll let you know if I think of others.

Was an explosive class weapon in fallout nv and a launcher sidearm in COD blackops

I think I know of something but I don't have a link and it technically is a toy even though it looks like the real deal other than the cord coming out of it. It was a training rifle for some military training thing on the SNES. I heard about it in a Proton Jon livestream where he even showed a picture of it.

The Japanese original light gun?

No but I found links. I was searching for something like the original NES duckhunt gun because of how the one Jon mentioned works but after finally searching SNES gun I found this https://www.google.com/imgres?imgur.....nUQMhQr_1M&;tbnid=WgY9H5aAfN6MRM%3A&vet=10ahUKEwikwqmqlpXTAhVJ8IMKHYXdB7wQMwgqKA8wDw..i&w=646&h=192&bih=335&biw=592&q=snes%20gun%20accessories&ved=0ahUKEwikwqmqlpXTAhVJ8IMKHYXdB7wQMwgqKA8wDw&iact=mrc&uact=8 https://www.google.com/imgres?imgur.....Qr_1M&tbnid=Ln53ibCqZ5uPxM%3A&vet=10ahUKEwikwqmqlpXTAhVJ8IMKHYXdB7wQMwguKBMwEw..i&w=267&h=200&bih=335&biw=592&q=snes%20gun%20accessories&ved=0ahUKEwikwqmqlpXTAhVJ8IMKHYXdB7wQMwguKBMwEw&iact=mrc&uact=8

Edit: wonderful link work FA I post two full links and you screw it up in the post by making only part of each clickable.

Although clicking them seems to send you to an article with both pictures of the thing.