I was itching to cut the grass the other day but Goblin always wants a turn on the lawnmower which doesn't lead to much grass cutting. So I dashed into the house to make him one of his very own.
I realise that this contraption doesn't look very impressive - thats because it took literally 5 minutes to put together. But I wanted to share it with you because it actually works! OK slight exaggeration, it doesn't cut the grass but the blade turns round as you push it on the long grass.
I took the base of his plastic toy shopping trolley (cart) and attached a cardboard handle. Then I inserted a blade into the base of the trolley.
The blade is two squares of cardboard with slots cut to the middle. I then intelocked them and taped a straw down the middle (straw depicted in red in diagram. Then I balanced the straw on the lower rung of the trolley and stuck little U shaped to hold it in place but allow it to turn.