Thank you, Lee! I was beginning to suspect it was those, because they did have those at my TJ's and when I called a larger TJ's and asked, they described those.
I was hoping for the other shape, as they seemed easier to fill (I used to make stuffed peppadews). What did you use to put the filling in the pepper halves? Pastry bag? Plastic bag? Melon baller? Or just a regular knife or spoon?