one of the cool things about doing youthwork is that you are able to go to sites like indestructables. Basically the site teaches you how to consturct things out of things you may have lying aound your house (using cartoons format instruction sheets in the early days.) One of my favourite one was the marsh mallow blow pipes, Which we build one year at carberry out of Plastic water pipes and had a darts contest with. it was class.
anyway I am currently very much appreciation the goodness of the Build the starship enterprise from useless office suppies instructable. i have always thought I had an eye for design and construction!