Editor's note: Many of us were first exposed to this warm, vibrant instrument via the late Israel Kamakawiwo’ole’s iconic variation on “What a Wonderful World.” With tropical vibes and simple chords, the song encapsulates what’s great about this instrument: it makes the simplest songs memorable. In addition, it’s portable, not so tough to learn, and won’t break the bank if you’re still shopping for your first instrument. Enjoy some fun Ukulele wallpapers!