How about a
mailbox post? I used (1) 8' 6x6 and some 4x6 for brace stock. I didn't have the big powertools that I have now, but it only took me a few hours to build it (considerably more to to design it)
While my design has an
extended "beam" and a custom welded base, the basic design could be modified to have a shorter "beam" and it would give you a longer post to be buried in the ground, however you'll eventually run into rotting issues.
-Steve
BTW, daiku, nice Timber Trestle Sawhorses!
