My kids were really interested in the book Zany Wooden Toys that Whiz, Spin, Pop, and Fly
when I had it home from the library, and I would love to build some of these kinds of things with them. The woodworking isn't necessarily beyond me, but finding time has been, so it would be great if we could find some kits that made unusual or especially interesting wooden toys.
I've been googling, and the only thing I can find are the usual assortment of jumping jacks, vehicles, airplanes, and so one--a lot of old-fashioned and heirloom style toys. That might be fun, but I think my kids would love things more like the tissue-launching crossbow or penny shooter in the book--things that are kinetic, goofy, unique, and mayhem-inducing.
I am open to the possibility of non-wood kits, too, if you know of something cool. But for the purposes of this question I'm not looking for open-ended building toys, robotics, or anything with a motor (we already have that kind of stuff in spades).