Giant Guts Sticker Pack of 15 I Heart Guts Stickers Wow! 15 adorable organs at one low price! Strong stickers! Slap a brain on your bike, a heart on your water bottle. Share this pack of cute guts with friends, or just keep them for yourself. Learn about your organs with our fact-filled cardboard backing. 15 extra-large outdoor-quality vinyl stickers measure about 3 each.