SWIM read that using a lighter, matches or direct flame on your O isnt the best way to smoke it.... that's why clay bowls are used and glowing red hot ember is held over the O to melt it and vaporize so you can inhale the fumes...
SWIM read that a glass lightbulb with the top off can be used, but then there's the risk of the glass breaking as its so thin.
How about this for an idea? Ever use a "Striker" in chemistry class?
It looks like this:
Just pop the rectangular steel plate in the middle (or leave it), and you've got a steel bowl that you can heat from underneath without worry of it breaking, etc... and a nice handle so you dont burn yourself.
SWIM is just thinking you could melt and vaporize a small ball of O from below, as it vaporized just keep a small plastic drinking straw in your mouth and inhale...