Have you ever tried anything interesting in the garden simply because you wondered how it would work? I do some things different every year. This year, I will be planting different crops in bales of straw lined up against the fence with a soaker hose on a timer to keep them moist. If it interests you, do a google search for growing in straw bales. It isn't a new technique, but it is new to me.
When I was a child of about eight, I gathered leaves from a variety of trees in our yard. I ground them into a fine powder by processing them through my mothers hand crank meat grinder. I added enough moisture to create a thick paste which I formed into cubes, cups, and balls. Sometimes I would add wheat flour or dirt to the mix. After the various shapes dried, I would rehydrate them and add a seed to each. The seeds would usually germinate, but then die quickly. Many years later I determined the leaves had a tannic acid content which quickly killed the seedlings.
What have you tried in the garden out of simple curiosity?