Pillows are a possibility. They might absorb too much color though and cast too dark of a shadow unto the background. But I could play around with the pillow stuffing. Also, I could use some normal pillows and some feather pillows. The different types of pillows may create a different effect.


Light bulbs could be really cool. I liked the example of a past students work that involved light bulbs. This could get expensive though and I want my clouds to look as fluffy as possible.
Cotton balls could be fun to play around with, but if I use a small material it would be difficult to make my clouds really large. Also I it could be very hard to connect all the cotton balls together.