We saw this cute idea on Pinterest this afternoon.
We cleaned up our standing room fan and painted the blades with primary colors...red, blue and yellow.
Amy did the painting for us using regular acrylic paint.
When the fan is turned on, you have an instant rainbow....cute and quick.....my kind of project.
For complete disclosure, don't turn the fan on to test the colors until all the paint is totally dry or you will find out what real "spin art" looks like.