I had this hazel sapling I cut some time ago, it was 37 and over 50 mm in diameter at its thinnest and thickest ends, and was well over 2 meters long. I decided to use it for legs, cut up into three each is over 750 mms, which means it will be kinda low table, but I just want to use it as a flat-ish surface when it's needed, and a place I can put my tools when I do stuff in the garden. Maybe I can get some more hazel in the same size, but they need a year at least to dry.
Btw flat-ish surface, did some cleaning up on the Y log, sawed off the ends to make it clean, and roughly smoothed the surface. I thought I give it legs first then I'm gonna pane it a little.
I don't want the legs to be horizontal, but inclined a little. With the "I" part of the "Y" it's simple, but at the branches they have to be inclined in two directions.
I also plan to add cross "beams" between the legs to reinforce the whole structure.