Free SackBoy

Go to any UK proxy like

no1proxy.info/ OR slygeek.com OR docoja.com/blue/ OR  goproxing.comOR daveproxy.co.uk/

Paste campaign link into the blank box of the proxy site http://www.stardoll.com/en/campaigns/den_uk/contest.php?gift=true 
Click Browse/Go OR just Hit Enter 
Log in stardoll

You will be redirected to Den site, Leave the proxy by closing the window/tab, Go to stardoll as usual 
Sackboy should be in Starplaza bag in your suite [: