thought i'd contribute to this thread...
Ive always loved toying on markers and just getting technical and creative....
trying to make an original homeade marker..definatley beats going out and racking shit that everyone else uses...
and i love seeing tags around and trying to figure out what everyone uses..
so here it is
take a mini bottle, I used a sample head and shoulders mini bottle with a twist off cap.
take the cap off, and take a strip of felt.
super glue/hot glue the piece of felt onto the cap facing inwards into the botthle.
fill the bottle with ink, and screw the cap back on. you gotta make sure the felt fits nicely inside the bottle, making sure that the strip is not too long/ not too short
bam! there ya go. no messy leakage or nothing.
just get the nib inside nice and wet before you bust, unscrew and write with the cap.
i like to think of it not as a marker, but a container off ink with a felt dabber. it works fuckn great yo !
cheers