Use a marker, paint brush or spray paint
razor blade works well
1.05 to 1.2
A paint pen. then remove with a razor blade.
It is possible, but would be very difficult.
with White Sprites and a Stanley Blade.
Find a design you like. Cut it out on cardstock with an exacta blade knife. Then paint or airbrush with body paint.
Scrape it carefully with a razor blade
YES . Maybe some waxes destroy paint, but there are waxes specifically made to protect car paint.
Because of gravity?
A razor blade and windex... it's easy!
Most brands have a paint specifically formulated for porches. Generally it is called "Porch and Floor" paint, and is available in latex as well as oil.
The Craft paints, no. However, I believe Plaid does carry a paint specifically for glass etc.