The following code shows how to create toggle button with pencil icon.
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
src='http://code.jquery.com/jquery-1.9.1.js'></script>
<link rel="stylesheet" type="text/css"
href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css">
<script type='text/javascript'
src="http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.3.2/js/bootstrap.js"></script>
</head><!-- w w w . j a va2s . c om-->
<body style='margin:30px'>
<label class="btn btn-primary">
<i class="icon-pencil icon-white"></i>
<input type="checkbox" name="foo"
class="hide" data-toggle="button" value="1" />
</label>
</body>
</html>