If you are making a more detailed art piece the tools you might need are small paintbrushes or small tipped markers.
If you are trying for a more abstract painting you are looking for a bigger paintbrush or just a large marker.
If you want to make your piece have amazingly straight or curved lines you need to try sketching! You really need pencils or stencils. The stencils will help you practice drawing specific things that you love!
If you are looking to draw an optical illusion you might want to grab a black pencil for shading. This will help make it look more realistic.
If you are just chilling in the kitchen and are bored you should try doodling! You can use whatever art materials you want, just create a character or a funny animal!
Line Drawing is something you might want to do if you want your piece to look both abstract and real. I recommend using a dark black pencil.