Inspire Puppy Love with Sweetheart Charms. Aria Sweetheart Charms add an elegant touch to collars and necklaces and make posh pets the talk of the dog-walk. Each heart-shaped charm brilliantly gleams with dazzling rhinestones in one of three sparkling colors. Each 1"L x 1"W charm clips easily with a lobster claw clasp. Available in Blue Tranquility or White Ecstasy.