As the title says, I wanna make a practice wall at home. I love drawing on paper as much as the next guy but as someone who is new to this still I need more practice with a can, and going out often to practice is pretty risky in my opinion. On top of that there are no "Legal" walls near me, plus what's the fun in that if there is no challenge. Just don't want to risk getting caught. Anyways, main question is what material would be a good choice to use. Also would it be easier to wash said wall or just paint over it? Lastly, being dumb, what is the best way to clean off paint other than just scrubbing? Thanks in advance to any tips and answers.