my fav markers have to be either chapstics(sure its around here somewhere) and push pops.
this is from a tut i typed from stencilrevolution.com
Push Pop(candy, not ice cream)
Eat up. Rinse it out, drip wax and let cool 3 seperate times, until you completely cover the slider. Then, flip over so its upside down, and completely seal the bottom. Cut and fold up felt, make sure it fits. Then, you are going to want to put in one small pin hole in the cap. If you do not, whaen you close it, it will push air that will push ink, almost like a pump, throught the bottom of the marker. Then drip in ink. 2 cm nib.