Comment Laser cutter suggested (Score 1) 49
A 3D printer requires making 3D models, which can require considerable take time and skill to create. The printers are also very slow and good for only very small objects in a reasonable time frame. As an alternate, I suggest you consider a laser cutter. These act as "printers" for 2D vector files, which are easy to create in drawing programs like Corel. The user's complex shapes cut from plastic by the machine can be glued together to make many interesting and fascinating art projects. The laser cutter is fast enough so many people can use it what seems to be nearly the same time. You can get a good one for $10 to $15k. An Epilog Legend Mini 24 ( http://www.epiloglaser.com/legend_mini24.htm ) would be a good choice. We bought one two years ago at the Institute and it became an instant hit, busy all the time, with everyone using it.