In case anyone has difficulties, like me, locating these little darlings, I was able to find some at the local Big Bear store on 925 Old Lincoln Hwy in Morrisville.
I think they may also have them at the new VitaminShoppe by HomeDepot/Oxford Valley, but I haven't checked yet.
Eivind, we sell them at Wine Barley & Hops Homebrew on a regular basis.