Happy as a Clam? Yes! These clams are (mostly happy), despite not possessing much of a brain. Perhaps that's exactly why they're happy? Stickers for your Messages. Your suggestions for new clam stickers are welcome. Why clams? Why not? Despite lacking most body parts we can relate to, these clams can definitely empathize with your emotions. I used to have a 140 gallon saltwater aquarium. I always wanted a clam, but it never happened - but now I can live vicariously through your messages. LOL