No, wait, wrong picture. How about this one? The dining room table I have been dreaming about. This has been in my Try This file for ages.
I make no claims that I am a professional woodworker. I always seek advise from others first including Joseph (the Jewish Carpenter), Bob the Builder (who builds whole towns & his tools talk), or Bob Villa (enough said). I did however find a post on little paths so startled by simply Goggleing (that's not actually in my spell check) "wood pallet dining table." Here is a picture of hers, made by her husband.
I think I used 6 pallets or at least the equivalent of 6. I used the 2x4s from the pallets as legs and supports and the edges. I chose ones with those funny cut outs for the fork lift. I build that part upside down so it was all flush to the floor. That way when I flipped it the top supports were (mostly) all even.
When choosing the boards you want to use, make sure they are the same thickness otherwise you will end up with a bumpy table. Or you will end up fussing a lot more than necessary. I gave each board a good sanding with a power sander using 120 grit before assembling the top. Then again once it was assembled to even out the joints.
pre-drill holes for nails
layout top BEFORE nailing
measure often with a tape measure that is LONGER than you table
gather MORE pallets than you will need
understand that this will NOT be perfectly straight or level
make sure you get to a point of no return and THEN enlist your husband for the really hard parts
Lastly, be willing to consider you may have a bonfire in the end instead of a family meal.