psychedelic checkerboards or checkered seamless y2k pattern with rainbow, flowers and smile faces

checkerboard pattern psychedelic flower heart smile rainbow daisy groovy trippy grid seamless face wave cute happy retro poster chess background funky y2k hippie distorted board floral grunge vector abstract chessboard geometric 70s graphic print design checker 90s vintage art wallpaper tile illustration gingham line trendy cover optical template card mosaic