Here is a design for a simple and fun light up flower just in time for spring.  I used this design as part of a classroom project with my daughters Kindergarten class. A full description on how to use this as part of a class curriculum can be found on the following indestructible page:http://www.instructables.com/id/Spring-kindergarten-Class-Project-with-3D-Printer/ You can also see more pictures in my blog:http://apprenticemaker.blogspot.com/2015/05/showing-off-3d-printer-to-daughters.html