My intention was to use them for art projects with the kids.
They have so far been used for balancing balls, role play telescopes, rolling (very fascinating as they curve), stacking into towers, hiding small toys and trumpets. The art projects will come later - apparently they are going to have doors cut to make tents.
I am constantly amazed by the creative minds of kids!
Check out urban source more inspiring materials.
Thanks J for the insight and the experience!