psychedelic stickers feature vibrant colored alien head, cat with three eyes, planet with snake ring and ufo saucer

psychedelic sticker vector set retro cartoon groovy alien element vintage icon smile trippy face symbol surreal hallucinogenic collection isolated cat head eyes planet snake ring ufo hippie saucer colorful trendy funny emoji character comic patch weird emoticon funky quirky nostalgic personage 70s happy 60s old nostalgia hippy groove vibrant illustration