New, innovative, and in some cases not quite human and downright dangerous, yoga positions are demonstrated, illustrated and captioned for best wishes Birthday hilarity on the funny flexing greetings in this three card pack. Even if your female friends, family members and coworkers don't do bending exercises, they'll all still be bent over clutching their stomachs with laughter when you gift them any one of the amusingly agile birth anniversary workout cards. With a mermaid, some Birthday poses, and one pretzeled person emergency, these joyful joke greetings are well positioned to guarantee Birthday fun and good cheer.