Ключевые слова: 2015, anniversary, annual, background, black, blackboard, blank, board, border, business, celebrate, celebration, chalk, chalkboard, change, color, concept, countdown, creativity, design, draw, drawing, education, event, frame, friday, future, handwriting, happy, holiday, ideas, message, new, number, party, retro, school, sign, signboard, space, student, symbol, text, time, white, wood, wooden, word, year,