When NASA started sending astronauts into space, they quickly discovered that ball-point pens would not work in zero gravity. To combat this problem, NASA scientists spent a decade and $12 million developing a pen that writes in zero gravity, upside-down, on almost any surface including glass and at temperatures ranging from below freezing to over 300 C.

The Russians used a pencil.

Your taxes are due again - enjoy paying them.

Yes, but the pencils were not the usual graphite, but wax one. Graphite dust in zero gravity can even be dangerous.

Crayola has something that should work

Colored pencils are wax based, even the black color.