For this bit, we're using L brackets. To make it easier to slot everything together, flip your kitchen onto its side, then position your brackets where you want them to go, and mark up with a pencil – this is where you'll drill your pilot holes. Then drill in your screws, making sure to use screws that aren't too long so they don't poke through to the other side. Don't forget to wear safety glasses for this bit!
We have plenty more craft ideas to choose from, or you can head to your local Bunnings store's craft aisle for inspiration.