first-attempt

a {
  display: inline-block;
  background-color: #B6B6B6;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  font-weight: 700;
  font-size: 1.5em;
  font-family: sans-serif;
  color: #5D595A;
  padding: 0.5em 0.75em;
  -moz-border-radius: 15px;
  -webkit-border-radius: 15px;
  border-radius: 15px;
  border: 10px solid #BFBFBF;
}

a:before, a:after {
  content:"★";
  font-weight:bold;
}