1. Log in to your dashboard--> Design- -> Edit HTML

2. Search "Ctrl+F" and find ]]></b:skin> Before it paste the following code:

.bubblewrap{
list-style-type:none;
margin:0;
padding:0;
}

.bubblewrap li{
display:inline;
width: 65px;
height:60px;
}

.bubblewrap li img{
width: 55px; /* width of each image.*/
height: 60px; /* height of each image.*/
border:0;
margin-right: 12px; /*spacing between each image*/
-webkit-transition:-webkit-transform 0.1s ease-in; /*animate transform property */
-o-transition:-o-transform 0.1s ease-in; /*animate transform property in Opera */
}

.bubblewrap li img:hover{
-moz-transform:scale(1.8); /*scale up image 1.8x*/
-webkit-transform:scale(1.8);
-o-transform:scale(1.8);
}

3. Now go to Layout-->Page Element and click on "Add a gadget". Select "html/java script" and add the code given below and click save.

<center><ul class="bubblewrap">
<li><a href="http://www.artistutorials.co.cc"><img src="http://img42.imageshack.us/img42/7086/stumbleuponlj.png" title="Add to Stumbleupon" /></a></li>
<li><a href="http://www.artistutorials.co.cc"><img src="http://img253.imageshack.us/img253/835/facebookv.png" title="Add to Facebook" /></a></li>
<li><a href="http://www.artistutorials.co.cc"><img src="http://img821.imageshack.us/img821/5032/diggk.png" title="Add to Digg" /></a></li>
<li><a href="http://www.artistutorials.co.cc"><img src="http://img832.imageshack.us/img832/5893/twittermx.png" title="Add to Twitter" /></a></li>
<li><a href="http://www.artistutorials.co.cc"><img src="http://img4.imageshack.us/img4/2004/rssqn.png" title="Add RSS Feed" /></a></li>
</ul>
</center>

Replace the red links with your own facebook twiteer digg etc links.

DEMO