What kind of paint pen would work best on glass?

I am making a game and I have to paint numbers on little glass marbles. I need it to be as permanent as possible.

FantasyFootball
on November 30th, -0001

Try a Sharpie!

http://www.total-knowledge.com/~willyblu…
Sunflower
on November 30th, -0001

acrylic
ShinyStars
on November 30th, -0001

elmers paint pen
EgyptianWonder
on November 30th, -0001

u need a white board marker which can also be erased when u want it to
HighMaintenance
on November 30th, -0001

Glass paint isn’t really permanent, it’s made to be washed off because most people use them to decorate during holidays and nobody wants Santa on the living room window in July. So your best bet is to get regular sharpie markers they come in all colors, then get a clear gloss spray paint or brush paint and then seal in your design.
MindsEye
on November 30th, -0001

The SHARPIE indelible ink pen is particularily permanent on glass

Aleš Lombergar