When I was 12 I built a kite. The frame was whatever wood I could scrounge up in my basement. I found an old sheet to cover it and to make the tail. I didn't have any string so I used rope. Actually it needed rope since it was 4 feet tall and weighed about 10 lbs. Several people told me it would never fly.
I took it out in a field and after many tries it rose to the majestic height of 20 feet before crashing to the ground in a heap. I consider it an accomplishment since my intent was to make it fly, not land it. 😏
I remember a few years back we had a 'team away day' at work and in one of the group exercises we were given a stack of paper (and tape) and an egg and asked to build the highest structure possible that would support the egg.
Although initially confident, the group I was in did dreadfully, while the other team built a structure that resembled the Eiffel Tower, supporting the weight of their egg quite beautifully.
Originally posted by @wolfgang59 I have just completed a Lego "Friends" construction (5-8 yr olds).
Man that was hard.
The pieces are so tiny I could barely see them.
My daughter had lost interest by the time I finished.
My grandson Pontus, now 17, was very good at building Lego when he was younger. They were pretty expensive, comprising many pieces including tiny ones that I could barely see - he could of course. Had all the pieces on the living-room carpet and the little instruction manual - kept him busy for many hours. Money well spent. He built race cars, fire stations, space ships that he still keeps on a shelf.
I tried to assemble a shoe rack for myself (four pieces) and failed.
I turned an open back upper porch into a laundry room/closet space, insulated the hell out of the walls, had to build walls on parts of it and installed huge double pane windows in the rest of it, my brother in law called it a rube goldburg but it has a lot of shelving and hanging rods. It took a full year of part time work to get it done. One big problem was our old house, built in 1882, was tilting back into the ground very slowly so I had to cut each wallboard to exact dimensions, more like a slight trapezoid shape, each one off a perfect square by a couple of cm. Got it done, installed flourescant light, the ones bent 180 degrees so they fit in a 2X2 space rather than the standard 2X4 foot space.
One benefit was the entire back part of the house was about 10 degrees warmer in winter because that structure was well insulated.