Just found your post. Gosh, I love the idea of such a thread, and was immediately thinking about my own need for answers as to what to make for gifts for the paper lady, the postal lady, the veterinarians, our butcher, guys at the transfer station (aka garbage dump), and so forth. These wonderful folks are so good to us...and our dogs

...that I always make things for them. It seems the more sugar and butter, the better.
We need to make sure whatever it we make corresponds to what 'others' like. Now I wouldn't thank anyone for milk chocolate

, but others seem to like it best. I have to keep that in mind given my own proclivities. I gave some delicious dark chocolate to two friends in Moab last year, and they each said...it tastes like pure cocoa. Interesting.
So my first response to the 'corn' idea is...No, not corn. But the oatmeal, peanut butter, chocolate chip item..Yes! Guys like stuff like that for sure. Builder guys invariably like that stuff. Almost all kids like that.
I'll think about what you can make, although you'll get better answers from experienced bakers.