Tromboncino and Yellow Crookneck (sliced into coins) dried really well for me in the past. Fordhook zucchini was good shredded, but not as good when spiralized into noodles or sliced. Patty pan types (Bennings and some yellow variety) weren't great either.
Stinging nettles are edible. But I really want to see you try to eat this tiny ad:
October Rocket Mass Heater days! Wheaton Labs October 11-17