Carol Gonzales has 300 gallons of “oops” paint from home-improvement stores in her dining room. She snaps up colors others call mistakes and integrates them into paintings, drawings and collages. Not to mention her other tools — tree bark, coffee grounds, nail polish, swizzle sticks, drywall, pencil shavings and “anything else that transports paint.” She scours books for ideas, brainstorming until she’s exhausted. She counted the results once: 2,000 designs, half of which she finished. The thirst to create permeates her professional life, too: During eight years with the U.S. Air Force, she always managed to incorporate art into her work — and she received “Best in the European Command” recognition for her art when she served in England. Once five credits shy from a Communication degree in Arizona, she produced a how-to article for technical writers. These days, she’s communicating through paint — and bamboo and beads and …