April 9, 2018 jinnifer douglass Props & Signage COBRA KAI PROMO MERCH April 9, 2018 jinnifer douglass Props & Signage Cobra Kai merchandise influencer mailouts for Youtube Red Original Series promo with Thinkmodo. CNC engraved balsa boxes are karate chopped to release t-shirts, mailers, etc.. Designed by Thinkmodo and Eric J. Winston.