Wal your work inspired me to attempt a 2 colour house sign using epoxy resin & corian. The software I used was f-engrave
Click image for larger version. 

Name:	sign-yellow.jpg 
Views:	142 
Size:	312.2 KB 
ID:	29256Click image for larger version. 

Name:	sign.jpg 
Views:	154 
Size:	264.5 KB 
ID:	29257