Soap Crayons For Bathtub Fun

So, I had to open up the bathroom door to find out why Jude was trying to break in. He knew exactly what he wanted as he excitedly began yelling and pointing at the soap crayons on an upper ledge in the tub.  Handing him one green crayon was not good enough.  He needed all three with caps off in order to begin his masterpiece on his porcelain canvas.  Wow, was I impressed with his newly acquired drawing skills.  And when he was willing to move on to another activity, his art work wiped down easily with a damp cloth.  Next time I plan on water coloring with my friends, I'm inviting them all over to my bathroom for some real fun!
Best,
Bubbie and Jude
P.S.  What form of art have you explored with your grandchildren?
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How To Make Your Own Soap Crayons