Stockholm-based street artist Akay has created the “Rainbow Warrior: Tool No. 05.1” which is part of his “Instruments of Mass Destruction (Complicated Technical Solutions to Aide in Simple Acts of Vandalism) Series,” that includes the previous “Robo-Rainbow: Tool No. 10.” For both of the “art-making’ tools, the individual attaches an implement to the back of his/her bicycle.(via Designboom)