a cheerful 3d cartoon heart, adorned with a smiling face and bright white teeth, is on a transparent background

3d cartoon heart smiley face white teeth happy cheerful joyful cute adorable love affection emotion feeling positive optimistic uplifting character mascot icon symbol design graphic clipart digital art vector png isolated transparent background rendering animation children 039 book nursery rhyme educational material preschool kindergarten baby toddler child kid toy game play fun entertainment happiness joy cheerfulness optimism positivity encouragement inspiration motivation hope faith kindness compassion empathy care support friendship community family