The "IT" of Do-It-Yourself websites
This is a good teaching tool as it provides a way to make (sometimes) advanced objects out of (sometimes) common materials. These can be used inside and outside the classroom. Definitely the go-to place for instructions on classroom models that might be too expensive to purchase for the school budget.
How I Use It
This website offeres proven and tested ideas for creating experimental models or workable models concerning a variety of objects, some practical and some not so usable. This offers a step-by-step guide on how to build objects, with pictures for visual learners and the hands-on activities that go along with creating something. Make sure you use the right materials and follow proper safety guidelines at all times.