Yellow summer squash which I'm canning:
The butternut squash has an odd variation that might be due to cross-pollination with an unknown variety of C. moschata, or C. maxima. I save seeds from year to year, and the bees could have visited another variety somewhere else in the neighborhood.
This is what a young butternut squash should look like:
But I also have some of these mixed with conventional butternut, on the same plant. They are much darker green, with a different pattern, and more oblong. They look like watermelons but couldn't be:
And finally, here's a Brandwine tomato plant. It was a volunteer that seeded itself from last year, and I couldn't bear to pull it up: