Not sure if it's been mentioned before, but Zippo wicks seem to work fine too.
I went all gungho and tore apart my Bud when I saw OP's post, then I went ahead and stupidly lost the wick (or at least part of it). Didn't have a CE2 on hand (tossed them out a few weeks ago).
I was desperate for a wick, and I spotted my old Zippo sitting on my desk. Pulled that apart and tore out the wick. Just pull apart the metal strands and the stringy parts and you get to the middle wick that looks just like the original wick in the Bud.
Still trying it out, so if I get typhoid or malaria or something I'll tell you guys.
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edit:
I ditched the Zippo wick idea. For some reason it makes the vapes taste funny. Could be in my head, but I may have poisoned myself in some way or another. Updates if I end up in the hospital.