One of our founding team members sent me this:
https://www.sciplus.com/giant-latex-weather-balloon-48265-pOn sale for under twenty bucks--a little cheaper than usual though not earth-shattering: I think this is a 300 gram cell, which is the small size we sometimes use. 1-in neck would be the Kaymont size rather than the Pawan size (I don't have any specific reason to believe they're Kaymont--just regarding filling hardware).
Anyway, if you needed to stock up on smaller cells, it seems like as good a time as any...
73 de kj4cqq
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