I'll participate with 1:1 scale prop gun from 90's scifi game XCom: Apocalypse. The game is placed into late 21st century where aliens are invading earth. Player controls an organization that is fighting the invasion. The game is combination of research and base management mixed with tactical air and squad level ground combat while maintaining good relations with governing bodies to guarantee funding, etc.
There were numerous sequels, and I have played (and completed) UFO Enemy Unknown and XCom Apocalypse. Toxigun is from latter. Information of it can be found from Ufopaedia Spoiler warning
The toxigun becomes available after research on alien bodies (or was it living captured aliens). It's a hand gun with high rate of fire, it's very effective against aliens and toxin is harmless to humans which helps to limit collateral damage. This reminded me of an mission where I accidentally equipped my squad with HE and incendiary auto cannon rounds instead of AP to deal with alien attack on police station. Not much public acceptance collected
I learned toxiguns biggest drawback the hard way after sending a squad with toxiguns against more advanced aliens: they are immune to the toxin. And now after reading the Ufopaedia article, I found out that with further research better more potent toxins would've become available. Oh well...
I'm planning to scratch build the prop from eva foam (floor matting), cover it with plastidip before painting and weathering. I haven't built anything like this before, and I'm trying to apply what I've read from Punished Props
foam smith books and from their videos.
Not sure how take startup photo of a scratch built prop, so here's one tool and sheet of eva floor matting
The magazine 5/2017 was published 7.7.2017.
Actually, better picture would be a pen and sheet of paper, because sketching the prop is what I need to do first