Hello, I'm currently building a zombies ate my neighbors cabinet and I wanted to make themed lightguns to go with it. I went with the Ultimarc light gun kit and have everything working with that. The page with the kit is below, didn't have a direct link but you can figure it out, it's the kit.
http://www.ultimarc.com/JShopServer/section.php?xSec=7But I wanted to make 2 light guns that looked like the squirt guns from Zombies Ate My Neighbors.

So it's a pretty basic jumping off point, but I was wondering if anyone had any ideas of a product to kinda build off of or even a scratch build starting point? I'd like to have something with a decent weight to it and it's kinda hard to get a squirtgun like that. If possible, I've got no ideas in mind, I kinda wanna put an led in the gun and have colored water for each one.
Any ideas at all welcome. I feel like there are some cool possibilites, I'm just at a loss on where to start.