If you think pallets isn’t the best material to use for DIY indoor projects, you still can use them outside. For example you can make a vertical pallet garden of a single wood pallet. You just need to staple or nail landscaping fabric or plywood on its back and the bottom edge. After that fill the pallet with dirt and plant your herbs, flowers or anything else you want. Just remember that such garden would be quite heavy so fill it right on the spot you’re going to place it.
Source: domesticatednomad, lifeonthebalcony