Team Blinkerydoo's experience at DEF CON was a learning curve for them, and they're excited to share their top lessons learned from designing and developing the #bugcrowdbadge. They sold out of badges raising $3,820 for Hackers for Charity, but also faced challenges such as power management, charging, and QA issues with their batteries. They'll consider selling more assembled badges next year to satisfy both kit buyers and those who prefer a ready-to-use badge. The team will also explore add-on ideas, random sales locations, and publicity strategies, and encourage collaboration on future badge challenges. Additionally, they learned the importance of teamwork, soldering skills, and sharing feedback with the community, and invite users to share their thoughts and suggestions for next year's badges.