"With magnification levels as high as 175x, plant cells and their nuclei are easily observed!" It's also great for macro photography. :) All you need are some nuts, bolts, washers, plexiglass, plywood, basic tools like a drill, and a lens from a laser pointer.
So far my favorite South Indian food spot in San Francisco. Their "Uthappam" and "Onion Rava Dosa" are a must try. In the end, remember to round it all well with a cup of fresh brewed "Madras Coffee". It's sad that they are not open on Sundays.