HDTV antennae for over-the-air signals don't exactly cost a lot of money, but if you're the DIY type and would rather make your own than buy, all it takes is some spare cardboard, aluminum foil, glue, ...

Second graders at the Village Community School in the West Village were asked by their teacher, Carol Levitt, to build a giant model of the High Line in their classroom, the High Line blog reported.