I guess you can call me a thrifty mom.you know why?because I don't want to buy those expensive materials needed to make an artwork.I just want to make use of what I have in the house.I believe that you can find the word "best" in simplicity.You just got try it to see the result just like this one...
A spikey ball,ziploc bag,a paper and some paints are all you need to create a beautiful artwork.Here's the result...
love it!