What to do with leftover wood from a deck? Make something to put on it! The table is big enough to seat six kids and treated deck boards are perfect for an outside table.
Exterior 2" screws (since I had them) - shorter would be better so you don't have to angle to prevent coming out of the second of the two boards screwed together.
Deck boards (1"x5.4"x16')
Total time: ~2 hours depending on how good your math skills are :)
Mine was sized based on the amount of wood I had left and I spent a bit of time measuring the children to make sure the seats were in the right spot.
Table top length (4 pieces): 60"
Seats (2): 60"
Seat supports (2): 38" long
Legs (4 cut at 30 degrees): 30", angled at both ends.
Seat height: 9" from top of seat to tabletop, 2 1/2" offset outwards. 16 1/2" from ground.
Table top height: 27" from ground.
Some rough sketches and its time to cut!