I've got the rainbow bug these days. I'm over at the STAMPlorations blog with a tutorial on how I've masked and sponged a rainbow.
Used Distress inks along with STAMPlorations Wanderlust stamp set and Papertrey Cloud die.
I'm joining these challenges:
AAA Cards - Perfect Day (a rainbow makes a day perfect, especially if you're on vacation!)
heARTful Stamping - AG plus a stamp
Papercraft - CAS
Global Design Project - Show me the Sunshine