Happy Halloween Sign

Printed in multiple colors by changing the filament in between.
Change the filament at layer 4 and layer 7 to switch colors (exact layer numbers depend on your slicer settings) .

When using GCodePrintr app for printing, the app offers macros to automatically pause at a given layer and to easily change the filament.
https://youtu.be/FOUXfNs121E

GCodePrintr 3D Print App for Android
Homepage: http://3dprintapps.de

Tip: Try out GCode Simulator to check your print upfront
On Thingiverse: http://www.thingiverse.com/thing:44286