This is how i made it...
Step 1: RasterBator
and download the rasterbator standalone zip file.
The rasterbator simple changes the image to dots to make the image as large as you want it.
Step 2: Download Images
Download the image then open Rasterbator.exe
Step 3: Rasterbator Settings
UK is normally A4 and US is LETTER.
Next Change the settings to see how big you want your cut out (how many pages big).
Step 4: Dot Size
Make sure you select 'Multi-color' so that your image comes out colored and not black and white.
After you have finished click next, and your ready to rasterbate!!
Step 5: Printing
Step 6: Finishing Off
I glued the paper on and then cut around the card to create the cut out. The paper overlaps to make it easier to assemble. Apart from a few faint lines it looks just like a £30 cut out for the price of glue and ink.
I would recommend using a laser printer, as it has a few advantages. Its faster to print, overall cheaper, and if it gets when it wont run like ink does.
And that's basically it. The perfect addition to a party :D