ok just a heads up for anyone wanting to try that Peter K method who may not have a drill bit. I just pulled the ink tub from a standard styled bic pen, the type with that attached plastic piece that makes it stay in the pen barrel, and it fits perfect in the wick hole, tho would be too lose to use as an insulator
A pic of which pen your referring to and the peice your referring to would go a long ways. Just my $.02