Wink - Tom Hiddleston

1 - Go to where you customize your tumblr ( tumblr.com/customize ) and click 'Edit HTML'.
2 - Paste the following code anywhere after "<style type="text/css">" but before  "</style>"

        #tomwinkpop { right:0px; bottom:-1px; position:fixed; z-index: 2; }

3 - Then paste this code right after  "<body>" (before  "</body>")

<div id= "tomwinkpop"><a href="http://munchmeincookeh.tumblr.com/post/79097358817"><img src= "https://31.media.tumblr.com/ca2e41f1e57759e732c85a61055a3030/tumblr_n26urjLFq71toz38ro1_500.gif" height="300px"></a></div>

Tips: If the pic is too big or doesn't fit, change the value of 'height' for a smaller one (e.g.: 200px).
If it isn't working try erasing and writting the "}" again. Or just send me a message. Enjoy~