Found some more stuff around the house that I'd not thought about in ages, but that will mail easily and list quickly on eBay.

Picked a couple of more zucchini. The trick seems to be to inject full-strength BT into the stem when the plant is small so the vine borers can't get into it once it's planted and destroy the stem. One day a healthy plant, the next day it's dead when they're at work. These are looking pretty good.