Quoted from mitchzizzle:Hey thanks very much for this suggestion - just received and cut out my decals (12x12") did the trick for both - I should have remembered to add more useful decals into the blank space but !
Glad it worked out, I forgot to use up the extra space the first time as well. Don't worry, you will find other stuff to print now.
That's how I've been doing mine. I draw up the svg in Inkscape to have the plastic laser cut and get decals printed to mount to the back for the graphics. I used to do waterslides at home but that was limited by the size paper I could print and not being able to do white. The decal material also sticks better than the waterslide.
I did these for Mushroom World
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And these for my South Park
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