Hi!  I am asking a tolalty unrelated question, so please excuse me.  I did a google search for painting on a blackout shade and your blog name came up.  It listed you as having painted a cloud mural black out shade for another bloggers nursery.  Could you help me out with some feedback?  My kids share a tiny room and it is an ocean/beach theme.  We live in sunny So. Cal so we use black out shades to try and get them to sleep in longer.  I was thinking it would be fun to paint on them and make them more interesting.  Does it hold up?  I currently have plastic type shades...do they need to be something else or would primer and a good sealing keep it working?  Any help you could give would be fantastic!Thanks!Heidi