you can by cod liver oil by the vial at some places, but idunno about where you live, i know they sell it at whole foods if you have that but becides that i'm not sure
i kno this my already may have been thought of but u can take an ink of ur choice then get one of those portable shampoo bottles and take and eraser and cut it to make a nice nib! i kno it doesnt hold alot of ink but its pocket size!
i was asking if any one has dun it before i didnt ask anyone to do it, so i didnt have to waste my time and ink on something that doesnt work
you know the greatest minds of this world made truly significant discoveries through trial and error.
i drilled through a magic marker and cut the back off and filled it with paint n thinner but the back leaked to bad so i had to trash it but it could probly be better if it was sealed
^ and some things are better trying ur self... describing how to do sumthin only works well to a certain extent..
i wasn't talking to you, i was talking to the guy asking about the shampoo bottle. but it applies to you too. to answer your question. yes people have used them. just try it. if you like it then you like it, don't act like your time is so precious that you can't try something new. as far as ink, write a few lines with it and see if you like it before you fill it.
i just got a new shoe polish...never had this kind...its more like a marker....not thos fat ones...salt stain remover or something...looks like it holds more than the regualr ones...anyways looks good ahha....they look easier to use cause its not an awkward shape...i think everyone else agrees?