Hey! I made a free Bitcoin Theme for GO Launcher (for Android) lately. Maybe you like it! And for those who do not use Go Launcher on their phone I also published all the icons and wallpapers on my blog. You can use them for free under Creative Commons Licence. Maybe you need the icons for your own projects.
Please write me an email if you need bigger images or further file formats.
Bitcoin Theme on my Blog (with a Link to Google Play):
http://zwoodledesign.bplaced.net/2013/12/21/bitcoin-theme/Download Link for the Bitcoin Theme Set:
http://zwoodledesign.bplaced.net/downloads/Have fun!