Let me look around my yard. I may have a few about 1-1/2" diameter trunk but most of my trees grow tall before having side branches. My seedling trees does not branch until 6 ft, so I could cut it off at 7 ft when I dig it out. Send me a PM if you want a few I can donate to your store.
I did measure the bigger one next to the block wall, its to large, the trunk measure 12" then has a V-branch 6" above ground that are 5" diameter. I think I will just try a few air layers on smaller branches before I dig it out this summer.