Pasta art is a great cheap art activity, all you need is glue and paper and then whatever dry ingredients you have in your pantry. In fact you don't even need to just stick to pasta - we used rice, sunflower seeds, popcorn kernels and lentils as well as spaghetti, fusilee and penne pasta.
Because of all the different textures it's also a good sensory activity as well as a creative one. We decided to try and make flowers; I had a book open at a picture of a flower for reference. Poppet liked deciding which foods to use for the 'stem' and 'petals' but mostly just liked spreading lots of glue everywhere!
Poppet: 2yrs 9mos