1. Triangle: the most suitable shape that can serve as a cute decoration (flag, arrow, ribbon, roof etc.) 2. Trapezoid: the shape whose multiplication in combination exudes diversity and mystery (space, eye, emphasis etc.) 3. Square: the basic shape that fits into anything (gift, lozenge, window etc.) 4. Rectangle: the shape that holds freely written letters – Renew familiar things / Carry a warm heart in a basic shape / Refill with thoughts and imagination – You can either create stickers basically composed of the four shapes of triangle, lozenge, square, and rectangle and the colors of pink, yellow, green, mint, blue, orange, olive, black, red, purple, and grey, or try various stickers in your own way that is not rigid by jotting messages on stickers, imagine or shape things that would go together.