Armenian snake melon
This plant has been my pleasant surprise of the year. It does not care how hot it gets, it is bright green, still growing, and blooming like crazy. No fruits yet, but if I get a melon for 1/5 of those blossoms I won't know what to do with them all. I'm getting lots of cukes too, but about half of them are bitter. It helps when I pick them younger, very early in the morning, and cut off the inch next to the stem.
I'll also plant lots more eggplant next year. The heat does not seem to bother it at all. I just wish it tasted like fresh tomatoes.