CB Content Module with Custom CSS added to it. The CSS is as follows (you'll need to find a background image).
Code:
.sticky {
width: 139px;
height: 116px;
padding: 55px 10px 10px 10px;
position: fixed;
top: 300px;
left: 50%;
margin-left: 472px;
z-index: 999;
background: url(../images/stories/stickynote.png) top left no-repeat;
color: #000;
display: block;
-o-transform: rotate(-5deg);
-webkit-transform: rotate(-5deg);
-moz-transform: rotate(-5deg);
}
Then surround your content with <div class="stricky"></div>. Example as follows.
Code:
<div class="sticky">This is my sticky note!</div>