yeah...i'm thinking maybe rigging a little bolt, then drill a small hole, then hax saw it to get a metal plunger....i'll have to put more thought into it, i still love the things, but that was a bummer...The stainless one broke?
and being this was a product development page, and it's doesn't sound they really flying off the shelves, just want to say MY PLUNGER BROKE! i had a few spares around though....